Transactions on Computers Media Center

Our volunteers share with the wider community their views and experiences on a variety of topics. The volunteers can range from associate editors to authors, reviewers or members from the research community at large. The interviews are intended to cover a wide spectrum of topics that are relevant to our community. These topics can be in the form of "shared experiences" and "lessons learned" or highlighting a new technological or theoretical breakthrough. We hope that members of the community will actively participate in making this new feature a great success. For information on submitting multimedia content, please click here.

Albert Zomaya

TC EIC

 

A Word from the Editor-in-Chief,
Albert Y. Zomaya

 

 

 

Call for Papers: IEEE Transactions on Computers Special Section on Computer Arithmetic

Guest Editors Alberto Nannarelli, Peter-Michael Seidel, and Ping Tak Peter Tang [http://www.computer.org/portal/web/tc] seeking original manuscripts for the IEEE Transactions on Computers Special Section on Computer Arithmetic. Submission deadline: September 15, 2013.

 

Computer arithmetic is fundamental to the design of general-purpose and domain-specific processors. Novel arithmetic algorithms and hardware designs are needed to satisfy the power-performance requirements of numerically-intensive applications in a variety of areas including scientific computing, cryptography, multimedia, graphics and digital signal processing. Specialized number representations and encodings play a significant role in the design of arithmetic algorithms and their implementations. Additionally, understanding the fundamental properties of finite precision number systems is essential in the engineering of efficient arithmetic algorithms, as well as the current and future emerging technologies are important in influencing the design and the implementation of such algorithms.

The full Call for Papers can be found here: http://www.computer.org/cms/Computer.org/transactions/cfps/cfp_tcsi_arith.pdf

In Their Own Words In Their Own Words

Entries with tag connected-dominating-set.

Constructing Connected-Dominating-Set with Maximum Lifetime in Cognitive Radio Networks

by Zhiyong Lin, Hai Liu, Xiaowen Chu, Yiu-Wing Leung, Ivan Stojmenovic

 

Connected-dominating-set (CDS) is a representative technique for constructing virtual backbones of wireless networks and thus facilitates implementation of many tasks including broadcasting, routing, etc. Most of existing works on CDS aim at constructing the minimum CDS (MCDS), so as to reduce the communication overhead over the CDS. However, MCDS may not work well in cognitive radio networks (CRNs) where communication links are prone to failure due to stochastic activities of primary users (PUs). A MCDS without consideration of the stochastic activities of PUs easily becomes invalid when the PUs become active. This study addresses a new CDS construction problem by considering the PUs’ activities. Our problem is to maximize the lifetime of the CDS while minimizing the size of the CDS, where the lifetime of a CDS is defined as the expected duration that the CDS is maintained valid. We show that the problem is NP-hard and propose a three-phase centralized algorithm. Given a CRN, the centralized algorithm can compute a CDS such that the lifetime of the CDS is maximized (optimal), and the size of the CDS is upper-bounded. We further present a two-phase localized algorithm which requires 2-hop information. Extensive simulations are conducted to evaluate the proposed algorithms.

The full article can be found here: http://doi.ieeecomputersociety.org/10.1109/TC.2013.77

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Essential Sets: Industry's Interest in Computer Arithmetic Research: Part I, Dr. Schwarz's view

Dr. Eric Schwarz describes the important aspects of computer arithmetic research. He provides a list of current questions that need to be solved by research and also what topics are the most interesting to industry.

 

Purchase the Essential Sets here:

Volume 1:

www.computer.org/portal/web/store?product_id=ES0000033&category_id=TechSets

Volume 2:

www.computer.org/portal/web/store?product_id=ES0000034&category_id=TechSets

 

Essential Sets: Industry's Interest in Computer Arithmetic Research: Part II, Dr. Hu's view

Dr. Hu describes the important aspects of computer arithmetic research. He provides a list of current questions that need to be solved by research and also what topics are the most interesting to industry.

Purchase the Essential Sets here:

Volume 1:

www.computer.org/portal/web/store?product_id=ES0000033&category_id=TechSets

Volume 2:

www.computer.org/portal/web/store?product_id=ES0000034&category_id=TechSets

 

Concurrent On-Line Testing and Error/Fault Resilience of Digital Systems

Guest editor Cecilia Metra discusses the "Concurrent On-Line Testing and Error/Fault Resilience of Digital Systems" theme issue for IEEE Transactions on Computers. View the issue here:

http://www.computer.org/portal/web/csdl/transactions/tc#3