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Displaying 1-50 out of 141 total
Attachment Learning for Multi-channel Allocation in Distributed OFDMA Networks
Found in: Parallel and Distributed Systems, International Conference on
By Lu Wang,Kaishun Wu,Mounir Hamdi,Lionel M. Ni
Issue Date:December 2011
pp. 520-527
Wireless technologies have gained tremendous popularity in recent years, resulting in a dense deployment of wireless devices. Therefore, it is desired to provide multiple concurrent transmissions by dividing a broadband channel into separate sub channels. ...
 
SID: Ship Intrusion Detection with Wireless Sensor Networks
Found in: Distributed Computing Systems, International Conference on
By Hanjiang Luo, Kaishun Wu, Zhongwen Guo, Lin Gu, Zhong Yang, Lionel M. Ni
Issue Date:June 2011
pp. 879-888
Surveillance is a vital problem for harbor protection, border control or the security of other commercial facilities. It is particularly challenging to protect the vast near-coast sea surface and busy harbor areas from intrusions of unauthorized marine ves...
 
Pilot: Passive Device-Free Indoor Localization Using Channel State Information
Found in: 2013 IEEE 33rd International Conference on Distributed Computing Systems (ICDCS)
By Jiang Xiao, Kaishun Wu, Youwen Yi, Lu Wang,Lionel M. Ni
Issue Date:July 2013
pp. 236-245
Many emerging applications such as intruder detection and border protection drive the fast increasing development of device-free passive (DfP) localization techniques. In this paper, we present Pilot, a Channel State Information (CSI)-based DfP indoor loca...
 
Parallel Algorithms for Image Template Matching on Hypercube SIMD Computers
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Zhixi Fang,Xiaobo Li,Lionel M. Ni
Issue Date:June 1987
pp. 835-841
This correspondence presents several parallel algorithms for image template matching on an SIMD array processor with a hypercube interconnection network. For an N by N image and an M by M window, the time complexity is reduced from O(N2M2) for the serial a...
 
Correction to “optimal load balancing in a multiple processor system with many job classes”
Found in: IEEE Transactions on Software Engineering
By Lionel M. Ni,Kai Hwang
Issue Date:March 1986
pp. 500
In the above paper 1 , an error was made in the Load Balancing Algorithm. A more clear recursive way to present this algorithm is to modify steps S3 to S5 as follows.
 
China's National Research Project on Wireless Sensor Networks
Found in: Sensor Networks, Ubiquitous, and Trustworthy Computing, International Conference on
By Lionel M. Ni
Issue Date:June 2008
pp. 19
This talk will give an overview of the 5-year National Basic Research Program of China (also known as the 973 Program) on Wireless Sensor Networks that was launched in September 2006 and sponsored by the Ministry of Science and Technology. This national re...
   
Spotlight: The Rise of the Smart Phone
Found in: IEEE Distributed Systems Online
By Pei Zheng, Lionel M. Ni
Issue Date:March 2006
pp. 3
The need for on-the-go communication is motivating application developers and service providers to target smart phones as a universal end point for data access and networked computing.
 
MODLoc: Localizing Multiple Objects in Dynamic Indoor Environment
Found in: IEEE Transactions on Parallel and Distributed Systems
By Xiaonan Guo,Dian Zhang,Kaishun Wu,Lionel M. Ni
Issue Date:November 2014
pp. 2969-2980
Radio frequency (RF) based technologies play an important role in indoor localization, since Radio Signal Strength (RSS) can be easily measured by various wireless devices without additional cost. Among these, radio map based technologies (also referred as...
 
Optimizing Bloom Filter Settings in Peer-to-Peer Multikeyword Searching
Found in: IEEE Transactions on Knowledge and Data Engineering
By Hanhua Chen,Hai Jin,Lei Chen,Yunhao Liu,Lionel M. Ni
Issue Date:April 2012
pp. 692-706
Peer-to-Peer multikeyword searching requires distributed intersection/union operations across wide area networks, raising a large amount of traffic cost. Existing schemes commonly utilize Bloom Filters (BFs) encoding to effectively reduce the traffic cost ...
 
Pseudo Trust: Zero-Knowledge Based Authentication in Anonymous Peer-to-Peer Protocols
Found in: Parallel and Distributed Processing Symposium, International
By Li Lu, Jinsong Han, Lei Hu, Jinpeng Huai, Yunhao Liu, Lionel M. Ni
Issue Date:March 2007
pp. 94
Most of the current trust models in peer-to-peer (P2P) systems are identity based, which means that in order for one peer to trust another, it needs to know the other peer's identity. Hence, there exists an inherent tradeoff between trust and anonymity. To...
 
Prioritized Overlay Multicast in Mobile Ad Hoc Environments
Found in: Computer
By Li Xiao, Abhishek Patil, Yunhao Liu, Lionel M. Ni, Abdol-Hossein Esfahanian
Issue Date:February 2004
pp. 67-74
<p>Many proposed routing protocols for manets require nodes to maintain and update complicatedroute information, which incurs significant overhead when groups have different priorities.To address this problem, some researchers have begun focusing on ...
 
LANDMARC: Indoor Location Sensing Using Active RFID
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Lionel M. Ni, Yunhao Liu, Yiu Cho Lau, Abhishek P. Patil
Issue Date:March 2003
pp. 407
Growing convergence among mobile computing devices and embedded technology sparks the development and deployment of
 
Performance Evaluation of Switch-Based Wormhole Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Lionel M. Ni, Yadong Gui, Sherry Moore
Issue Date:May 1997
pp. 462-474
<p><b>Abstract</b>—Multistage interconnection networks (MINs) are a popular class of switch-based network architectures for constructing scalable parallel computers. Four wormhole MINs built from <it>k</it>×<it>k</it&...
 
A VLSI Systolic Architecture for Pattern Clustering
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Lionel M. Ni,Anil K. Jain
Issue Date:January 1985
pp. 80-89
Cluster analysis is a valuable tool in exploratory pattern analysis, especially when very little prior information about the data is available. In unsupervised pattern recognition and image segmentation applications, clustering techniques play an important...
 
Scalable Live Streaming Service Based on Interoverlay Optimization
Found in: IEEE Transactions on Parallel and Distributed Systems
By Xiaofei Liao, Hai Jin, Yunhao Liu, Lionel M. Ni
Issue Date:December 2007
pp. 1663-1674
In order to provide scalable live-streaming services, we propose an Inter-Overlay Optimization scheme, IOO. Instead of selecting better paths in the same overlay, IOO constructs efficient paths using peers in different overlays, so as to (i) improve global...
 
Dynamic Dispersion Framework for Router Load Balancing
Found in: Parallel and Distributed Systems, International Conference on
By Yunhuai Liu, Lionel M. Ni
Issue Date:July 2005
pp. 641-647
<p>Load balancing is a key technology to achieve high performance as well as high reliability. Most of traditional approaches are based on a critical assumption that the service qualities of channels are already known. With such information, they att...
 
The Message Flow Model for Routing in Wormhole-Routed Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Xiaola Lin, Philip K. McKinley, Lionel M. Ni
Issue Date:July 1995
pp. 755-760
<p><it>Abstract</it>—In this paper, we introduce a new approach to deadlock-free routing in wormhole-routed networks called the <it>message flow model</it>. This method may be used to develop deterministic, partially-adaptive,...
 
The Message Flow Model for Routing in Wormhole-Routed Networks
Found in: Parallel Processing, International Conference on
By Xiaola Lin, Philip K. McKinley, Lionel M. Ni
Issue Date:August 1993
pp. 294-297
In this paper, we introduce a new approach to deadlock-free routing in wormhole-routed networks called the message flow model. We first establish the necessary and sufficient condition for deadlock-free routing based on the analysis of the message flow on ...
 
RASS: A Real-Time, Accurate, and Scalable System for Tracking Transceiver-Free Objects
Found in: IEEE Transactions on Parallel and Distributed Systems
By Dian Zhang,Yunhuai Liu,Xiaonan Guo,Lionel M. Ni
Issue Date:May 2013
pp. 996-1008
Transceiver-free object tracking is to trace a moving object that does not carry any communication device in an environment with some monitoring nodes predeployed. Among all the tracking technologies, RF-based technology is an emerging research field facin...
 
ASAP: Scalable Identification and Counting for Contactless RFID Systems
Found in: Distributed Computing Systems, International Conference on
By Chen Qian, Yunhuai Liu, Hoilun Ngan, Lionel M. Ni
Issue Date:June 2010
pp. 52-61
The growing importance of operations such as identification, location sensing and object tracking has led to increasing interests in contact less Radio Frequency Identification (RFID) systems. Enjoying the low cost of RFID tags, modern RFID systems tend to...
 
Processor Mapping Techniques Toward Efficient Data Redistribution
Found in: IEEE Transactions on Parallel and Distributed Systems
By Edgar T. Kalns, Lionel M. Ni
Issue Date:December 1995
pp. 1234-1247
<p><it>Abstract</it>—Run-time data redistribution can enhance algorithm performance in distributed-memory machines. Explicit redistribution of data can be performed between algorithm phases when a different data decomposition is expected ...
 
BloomCast: Efficient Full-Text Retrieval over Unstructured P2Ps with Guaranteed Recall
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Hanhua Chen, Hai Jin, Xucheng Luo, Yunhao Liu, Lionel M. Ni
Issue Date:May 2009
pp. 52-59
Efficient and effective full-text retrieval in unstructured peer-to-peer networks remains a challenge in the research community. First, it is difficult, if not impossible, for unstructured P2P search protocols to effectively locate items with guaranteed re...
 
A Mutual Anonymous Peer-to-Peer Protocol Design
Found in: Parallel and Distributed Processing Symposium, International
By Jinsong Han, Yunhao Liu, Li Xiao, Renyi Xiao, Lionel M. Ni
Issue Date:April 2005
pp. 68a
Peer-to-Peer (P2P) computing has become a popular application model because of its easy resource sharing pattern and powerful query search scheme. However, decentralized P2P architecture is scarcely seen to deploy the anonymity on its peers. In this paper,...
 
Tracking Mobile Users in Wireless Networks via Semi-Supervised Colocalization
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Jeffrey Junfeng Pan,Sinno Jialin Pan,Jie Yin,Lionel M. Ni,Qiang Yang
Issue Date:March 2012
pp. 587-600
Recent years have witnessed the growing popularity of sensor and sensor-network technologies, supporting important practical applications. One of the fundamental issues is how to accurately locate a user with few labeled data in a wireless sensor network, ...
 
Cardinality Estimation for Large-Scale RFID Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Chen Qian, Hoilun Ngan, Yunhao Liu, Lionel M. Ni
Issue Date:September 2011
pp. 1441-1454
Counting the number of RFID tags (cardinality) is a fundamental problem for large-scale RFID systems. Not only does it satisfy some real application requirements, it also acts as an important aid for RFID identification. Due to the extremely long processin...
 
Adaptive-Trail Routing and Performance Evaluation in Irregular Networks Using Cut-Through Switches
Found in: IEEE Transactions on Parallel and Distributed Systems
By Wenjian Qiao, Lionel M. Ni, Tomas Rokicki
Issue Date:November 1999
pp. 1138-1158
<p><b>Abstract</b>—Cut-through switching promises low latency delivery and has been used in new generation switches, especially in high speed networks demanding low communication latency. The interconnection of cut-through switches provid...
 
Dynamic clustering for tracking multiple transceiver-free objects
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Dian Zhang, Lionel M. Ni
Issue Date:March 2009
pp. 1-8
RF-based transceiver-free object tracking, originally proposed by the authors, allows real-time tracking of a moving object, where the object does not have to be equipped with an RF transceiver. Our previous algorithm, the best cover algorithm, suffers fro...
 
MDS: Efficient Multi-dimensional Query Processing in Data-Centric WSNs
Found in: Real-Time Systems Symposium, IEEE International
By Hanhua Chen, Mo Li, Hai Jin, Yunhao Liu, Lionel M. Ni
Issue Date:December 2008
pp. 355-364
Geographical hash table (GHT) has been widely used to provide energy efficiency for data-centric stor-age in wireless sensor networks. Such a mechanism, however, suffers from high communication cost when we apply multi-dimensional event search in the net-w...
 
CoStore: A Storage Cluster Architecture Using Network Attached Storage Devices
Found in: Parallel and Distributed Systems, International Conference on
By Yong Chen, Lionel M. Ni, Mingyao Yang
Issue Date:December 2002
pp. 301
We propose a storage cluster architecture CoStore, which evenly distributes system responsibilities across all collaborating cluster members without a separate central file manager. The serverless CoStore architecture has the potential to provide scalable ...
 
Fine-Grained Localization for Multiple Transceiver-Free Objects by using RF-Based Technologies
Found in: IEEE Transactions on Parallel and Distributed Systems
By Dian Zhang,Kezhong Lu,Rui Mao,Yuhong Feng,Yunhuai Liu,Zhong Ming,Lionel M. Ni
Issue Date:June 2014
pp. 1464-1475
In traditional radio-based localization methods, the target object has to carry a transmitter (e.g., active RFID), a receiver (e.g., 802.11
 
FIMD: Fine-grained Device-free Motion Detection
Found in: 2012 IEEE 18th International Conference on Parallel and Distributed Systems (ICPADS)
By Jiang Xiao,Kaishun Wu,Youwen Yi,Lu Wang,Lionel M. Ni
Issue Date:December 2012
pp. 229-235
Device-free passive (Dfp) motion detection seeks to monitor the position change of entities without actively carrying any physical devices. Recently, WLAN with a rich set of installed wireless infrastructures enables motion detection in the area of interes...
 
RCSMA: Receiver-Based Carrier Sense Multiple Access in UHF RFID Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Lei Kang,Jin Zhang,Kaishun Wu,Dian Zhang,Lionel M. Ni
Issue Date:April 2012
pp. 735-743
RFID tag identification is a crucial problem in UHF RFID systems. Traditional tag identification algorithms can be classified into two categories, ALOHA-based and tree-based. Both of them are inefficient due to the incidental high coordination cost. In thi...
 
BloomCast: Efficient and Effective Full-Text Retrieval in Unstructured P2P Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hanhua Chen,Hai Jin,Xucheng Luo,Yunhao Liu,Tao Gu,Kaiji Chen,Lionel M. Ni
Issue Date:February 2012
pp. 232-241
Efficient and effective full-text retrieval in unstructured peer-to-peer networks remains a challenge in the research community. First, it is difficult, if not impossible, for unstructured P2P systems to effectively locate items with guaranteed recall. Sec...
 
VMNet: Realistic Emulation of Wireless Sensor Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hejun Wu, Qiong Luo, Pei Zheng, Lionel M. Ni
Issue Date:February 2007
pp. 277-288
<p><b>Abstract</b>—Many research activities on Wireless Sensor Networks (WSNs) need detailed performance statistics about protocols, systems, and applications; however, current simulation tools and testbeds lack mechanisms to report these...
 
A Private, Secure, and User-Centric Information Exposure Model for Service Discovery Protocols
Found in: IEEE Transactions on Mobile Computing
By Feng Zhu, Matt W. Mutka, Lionel M. Ni
Issue Date:April 2006
pp. 418-429
Service Discovery as an essential element in pervasive computing environments is widely accepted. Much research on service discovery has been conducted, but privacy and security have been ignored and may be sacrificed. While it is essential that legitimate...
 
EMPOWER: A Cluster Architecture Supporting Network Emulation
Found in: IEEE Transactions on Parallel and Distributed Systems
By Pei Zheng, Lionel M. Ni
Issue Date:July 2004
pp. 617-629
<p><b>Abstract</b>—Network research generally requires a simulation or emulation environment to test protocol implementations, to evaluate the performance of a scheme or a system, and to study complicated and highly varying network operat...
 
HUNTS: A Trajectory Recommendation System for Effective and Efficient Hunting of Taxi Passengers
Found in: 2013 14th IEEE International Conference on Mobile Data Management (MDM)
By Ye Ding,Siyuan Liu,Jiansu Pu,Lionel M. Ni
Issue Date:June 2013
pp. 107-116
Nowadays, there are many taxis traversing around the city searching for available passengers, but their hunts of passengers are not always efficient. To the dynamics of traffic and biased passenger distributions, current offline recommendations based on pl...
 
Correlating mobility with social encounters: Distributed localization in sparse mobile networks
Found in: 2012 IEEE 9th International Conference on Mobile Ad-Hoc and Sensor Systems (MASS)
By Junbo Zhao,Yanmin Zhu,Lionel M. Ni
Issue Date:October 2012
pp. 10-18
Most existing connectivity-based localization algorithms require high node density which is unavailable in many large-scale sparse mobile networks. By analyzing large datasets of real user traces from Dartmouth and MIT, we observe that user mobility exhibi...
 
Localizing Multiple Objects in an RF-based Dynamic Environment
Found in: 2012 IEEE 32nd International Conference on Distributed Computing Systems (ICDCS)
By Xiaonan Guo,Dian Zhang,Lionel M. Ni
Issue Date:June 2012
pp. 576-585
Radio Frequency (RF) based technologies play an important role in indoor localization, since Radio Signal Strength (RSS) is easily achieved by various wireless devices without additional cost. Among these, radio map based technologies (also referred as fin...
 
Dynamic Key-Updating: Privacy-Preserving Authentication for RFID Systems
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Li Lu, Jinsong Han, Lei Hu, Yunhao Liu, Lionel M. Ni
Issue Date:March 2007
pp. 13-22
The objective of private authentication for Radio Frequency Identification (RFID) systems is to allow valid readers to explicitly authenticate their dominated tags without leaking tags? private information. To achieve this goal, RFID tags issue encrypted a...
 
Switches and Switch Interconnects
Found in: Massively Parallel Processing Using Optical Interconnections, International Conference on
By Lionel M. Ni, Wenjian Qiao, Mingyao Yang
Issue Date:June 1997
pp. 122
Switched networks are receiving much attention and supplying a major class of interconnect networks. This paper discusses major issues in switch design and switch interconnects. Due to the importance of high-speed switches in building switched LANs, major ...
 
Chip Error Pattern Analysis in IEEE 802.15.4
Found in: IEEE Transactions on Mobile Computing
By Kaishun Wu, Haoyu Tan, Hoi-Lun Ngan, Yunhuai Liu,Lionel M. Ni
Issue Date:April 2012
pp. 543-552
IEEE 802.15.4 standard specifies physical layer (PHY) and medium access control (MAC) sublayer protocols for low-rate and low-power communication applications. In this protocol, every 4-bit symbol is encoded into a sequence of 32 chips that are actually tr...
 
DDC: A Novel Scheme to Directly Decode the Collisions in UHF RFID Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Lei Kang, Kaishun Wu, Jin Zhang, Haoyu Tan,Lionel M. Ni
Issue Date:February 2012
pp. 263-270
RFID has been gaining popularity due to its variety of applications, such as inventory control and localization. One important issue in RFID system is tag identification. In RFID systems, the tag randomly selects a slot to send a Random Number (RN) packet ...
 
Difficulty-Aware Hybrid Search in Peer-to-Peer Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hanhua Chen, Hai Jin, Yunhao Liu, Lionel M. Ni
Issue Date:January 2009
pp. 71-82
By combining an unstructured protocol with a DHT-based index, hybrid Peer-to-Peer (P2P) improves search efficiency in terms of query recall and response time. The key challenge in hybrid search is to estimate the number of peers that can answer a given que...
 
Energy-Efficient Localized Topology Control Algorithms in IEEE 802.15.4-Based Sensor Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Jian Ma, Min Gao, Qian Zhang, Lionel M. Ni
Issue Date:May 2007
pp. 711-720
<p><b>Abstract</b>—Sensor networks have emerged as a promising technology with various applications, where power efficiency is one of the critical requirements. The recent IEEE 802.15.4 standard offers a promising platform for wireless se...
 
Improving Unstructured Peer-to-Peer Systems by Adaptive Connection Establishment
Found in: IEEE Transactions on Computers
By Li Xiao, Yunhao Liu, Lionel M. Ni
Issue Date:September 2005
pp. 1091-1103
In unstructured peer-to-peer (P2P) systems, the mechanism of a peer randomly joining and leaving a P2P network causes a topology mismatch between the P2P logical overlay network and the physical underlying network, incurring a large volume of redundant tra...
 
Status of the CAS/HKUST Joint Project BLOSSOMS
Found in: Real-Time Computing Systems and Applications, International Workshop on
By Lionel M. Ni, Li Cui, Qiong Luo, Hoilun Ngan, Ze Zhao
Issue Date:August 2005
pp. 469-474
In March 2004, recognizing the importance of sensor networks, the Chinese Academy of Sciences and the Hong Kong University of Science and Technology launched a joint effort to investigate both fundamental and practical research issues in sensor networks. T...
 
Optimal Software Multicast in Wormhole-Routed Multistage Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hong Xu, Yadong Gui, Lionel M. Ni
Issue Date:June 1997
pp. 597-607
<p><b>Abstract</b>—Multistage interconnection networks are a popular class of interconnection architecture for constructing scalable parallel computers (SPCs). The focus of this paper is on the multistage network system which supports wor...
 
Contention-Free 2D-Mesh Cluster Allocation in Hypercubes
Found in: IEEE Transactions on Computers
By Lionel M. Ni, Stephen W. Turner, Betty H.C. Cheng
Issue Date:August 1995
pp. 1051-1055
<p><it>Abstract</it>—Traditionally, each job in a hypercube multiprocessor is allocated with a subcube so that communication interference among jobs may be avoided. Although the hypercube is a powerful processor topology, the 2D mesh is a...
 
Calibrating Large Scale Vehicle Trajectory Data
Found in: 2012 13th IEEE International Conference on Mobile Data Management (MDM)
By Siyuan Liu,Ce Liu,Qiong Luo,Lionel M. Ni,Ramayya Krishnan
Issue Date:July 2012
pp. 222-231
An accurate and sufficient vehicle trajectory data set is the basis to many trajectory-based data mining tasks and applications. However, vehicle trajectories sampled by GPS devices are usually at a relatively low sampling rate and contain notable location...
 
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