NDLI: Optimal relay node placement for multi-pair cooperative communication in wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Biao Han Jie Li Jinshu Su
Copyright Year	2013
Description	Author affiliation: Sch. of Comput., Nat. Univ. of Defense Technol., Changsha, China (Jinshu Su) \|\| Grad. Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Tsukuba, Japan (Biao Han; Jie Li)
Abstract	Relaying and cooperation have emerged as important research topics in wireless communication over the past half-decade. During cooperative communication, spatial diversity can be achieved by exploiting the relaying capabilities of the involved relay nodes, which may vastly enhance the achieved system capacity. The potential gains largely depend on the location of relay nodes. In this paper, we study the relay node placement problem for multi-pair cooperative communication in wireless networks, where a finite number of candidate relay nodes can be placed to help the transmission of multiple source-destination pairs. Our objective is to maximize the system capacity. After formulating the relay node placement problem, we comprehensively study the effect of relay location on cooperative link capacity and show several attractive properties of the considered problem. As the main contribution, we develop a geographic aware relay node placement algorithm which optimally solves the relay node placement problem in polynomial time. The basic idea is to place a set of relay nodes to the optimum locations so as to maximize the system capacity. The efficiency of our proposed algorithm is evaluated by the results of series experimental studies.
Starting Page	4724
Ending Page	4729
File Size	299910
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555340
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Wireless networks Wireless sensor networks Ad hoc networks Optimization Educational institutions
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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