Search For:

Displaying 1-14 out of 14 total
Architecture for Blocking Detection in Wireless Video Source Authentication
Found in: 2014 27th International Conference on VLSI Design
By Amit Pande,Shaxun Chen,Prasant Mohapatra,Gaurav Pande
Issue Date:January 2014
pp. 294-299
Blocking is a common artifact in wireless video streaming services, mainly attributed to packet loss degradation in real-time transmission scenarios. In this paper, we present a simple algorithm and architecture for robust detection of blocking artifact. W...
Securing Multimedia Content Using Joint Compression and Encryption
Found in: IEEE MultiMedia
By Amit Pande,Prasant Mohapatra,Joseph Zambreno
Issue Date:October 2013
pp. 50-61
Algorithmic parameterization and hardware architectures can ensure secure transmission of multimedia data in resource-constrained environments such as wireless video surveillance networks, telemedicine frameworks for distant health care support in rural ar...
Using Chaotic Maps for Encrypting Image and Video Content
Found in: Multimedia, International Symposium on
By Amit Pande,Prasant Mohapatra,Joseph Zambreno
Issue Date:December 2011
pp. 171-178
Arithmetic Coding (AC) is widely used for the entropy coding of text and multimedia data. It involves recursive partitioning of the range [0,1) in accordance with the relative probabilities of occurrence of the input symbols. In this paper, we present a da...
Architectures for Simultaneous Coding and Encryption Using Chaotic Maps
Found in: VLSI, IEEE Computer Society Annual Symposium on
By Amit Pande, Joseph Zambreno, Prasant Mohapatra
Issue Date:July 2011
pp. 351-352
In this work, we discuss an interpretation of arithmetic coding using chaotic maps. We present a hardware implementation using 64 bit fixed point arithmetic on Virtex-6 FPGA (with and without using DSP slices). The encoder resources are slightly higher tha...
A Reconfigurable Architecture for Secure Multimedia Delivery
Found in: VLSI Design, International Conference on
By Amit Pande, Joseph Zambreno
Issue Date:January 2010
pp. 258-263
This paper introduces a reconfigurable architecture for ensuring secure and real-time video delivery through a novel parameterized construction of the Discrete Wavelet Transform DWT). This parameterized construction promises multimedia encryption and is al...
Efficient Translation of Algorithmic Kernels on Large-Scale Multi-cores
Found in: Computational Science and Engineering, IEEE International Conference on
By Amit Pande, Joseph Zambreno
Issue Date:August 2009
pp. 915-920
In this paper we present the design of a novelembedded processor architecture (which we call a μ-core) that makes use of a reconfigurable ALU. This core serves as the basis of custom 2-dimensional array architectures that can be used to accelerate algorith...
Video Delivery Challenges and Opportunities in 4G Networks
Found in: IEEE MultiMedia
By Amit Pande,Vishal Ahuja,Rajarajan Sivaraj,Eilwoo Baik,Prasant Mohapatra
Issue Date:July 2013
pp. 88-94
Wireless network traffic is dominated by video and requires new ways to maximize the user experience and optimize networks to prevent saturation. The exploding number of subscribers in cellular networks has exponentially increased the volume and variety of...
Cross-layer coordination for efficient contents delivery in LTE eMBMS traffic
Found in: 2012 IEEE 9th International Conference on Mobile Ad-Hoc and Sensor Systems (MASS)
By Eilwoo Baik,Amit Pande,Prasant Mohapatra
Issue Date:October 2012
pp. 398-406
Evolved Multimedia Broadcast Multicast Services (eMBMS) in LTE standards provides Raptor code as Forward Error Correction (FEC) scheme in application layer. Hybrid automatic repeat request (HARQ) is also used to increase reliability at MAC layer for packet...
An Efficient Hardware Architecture for Multimedia Encryption and Authentication Using the Discrete Wavelet Transform
Found in: VLSI, IEEE Computer Society Annual Symposium on
By Amit Pande, Joseph Zambreno
Issue Date:May 2009
pp. 85-90
This paper introduces a zero-overhead encryption and authentication scheme for real-time embedded multimedia systems. The parametrized construction of the Discrete Wavelet Transform (DWT) compression block is used to introduce a free parameter in the desig...
Edge-prioritized channel- and traffic-aware uplink Carrier Aggregation in LTE-advanced systems
Found in: 2012 IEEE Thirteenth International Symposium on
By Rajarajan Sivaraj,Amit Pande, Kai Zeng,Kannan Govindan,Prasant Mohapatra
Issue Date:June 2012
pp. 1-9
LTE-Advanced (LTE-A) systems support wider transmission bandwidths and hence, higher data rates for bulk traffic, as a result of Carrier Aggregation (CA). However, existing literature lacks efforts on channel-aware CA, especially in the uplink. The cell-ed...
Evaluating perceptual video quality for mobile clients in 802.11n WLAN
Found in: Proceedings of the 8th ACM international workshop on Wireless network testbeds, experimental evaluation & characterization (WiNTECH '13)
By Amit Pande, Prasant Mohapatra, Victor Omwando, Yunze Zeng
Issue Date:September 2013
pp. 57-64
In this paper, we characterize the performance of HD video streaming in 802.11n WLANs under user mobility. We conducted experiments in QuRiNet, a large-scale outdoor wireless testbed that experiences little electromagnetic interference. We observe the vari...
Efficient health data compression on mobile devices
Found in: Proceedings of the 3rd ACM MobiHoc workshop on Pervasive wireless healthcare (MobileHealth '13)
By Amit Pande, Eilwoo Baik, Prasant Mohapatra
Issue Date:July 2013
pp. 25-30
There is an increase rise in the usage of mobile health sensors in wearable devices and smartphones. These embedded systems have tight limits on storage, computation power, network connectivity and battery usage making it important to ensure efficient stor...
Temporal quality assessment for mobile videos
Found in: Proceedings of the 18th annual international conference on Mobile computing and networking (Mobicom '12)
By Amit Pande, An (Jack) Chan, Eilwoo Baik, Prasant Mohapatra
Issue Date:August 2012
pp. 221-232
Video quality assessment in mobile devices, for instances smart phones and tablets, raises unique challenges such as unavailability of original videos, the limited computation power of mobile devices and inherent characteristics of wireless networks (packe...
Poly-DWT: Polymorphic wavelet hardware support for dynamic image compression
Found in: ACM Transactions on Embedded Computing Systems (TECS)
By Amit Pande, Joseph Zambreno
Issue Date:March 2012
pp. 1-26
Many modern computing applications have been enabled through the use of real-time multimedia processing. While several hardware architectures have been proposed in the research literature to support such primitives, these fail to address applications whose...