Please use this identifier to cite or link to this item: http://dl.umsu.ac.ir/handle/10722/91127
Title: Capacity enhancement with relay station placement in wireless cooperative networks
Authors: Lin, B;Mehrjoo, M;Ho, P-H;Xie, L-L;Shen, X
subject: Bandwidth;Heuristic Algorithms;Rapid Solidification;Relay Control Systems;Telecommunication Repeaters;Wireless Sensor Networks
Year: 2009
Publisher: IEEE, Communications Society
Description: To satisfy the stringent requirement of capacity enhancement in wireless networks, cooperative relaying is envisioned as one of the most effective solutions. In this paper, we focus on the problem of capacity enhancement by way of Relay Stations (RSs) placement, which is a critical task of network planning and deployment to achieve an efficient and scalable network design. To fully exploit the performance benefits of cooperative relaying, we develop an optimization framework to maximize the capacity as well as meet the minimal traffic demand for each Subscriber Station (SS). The problem of joint RS placement and bandwidth allocation is formulated into a mixed integer nonlinear program and solved through a heuristic approach based on genetic algorithm (GA). Moreover, an upper bound on the capacity is derived to assist the estimation of system performance given a network configuration. Numerical results are presented to demonstrate the effectiveness of the solution approach and the performance benefits due to RS placement and optimal bandwidth allocation through cooperative relaying. © 2009 IEEE.
URI: http://www.scopus.com/mlt/select.url?eid=2-s2.0-70349179732&selection=ref&src=s&origin=recordpage
http://hub.hku.hk/handle/10722/91127
Standard no: IEEE Wireless Communications and Networking Conference, WCNC, 2009
10.1109/WCNC.2009.4917619
1525-3511
eid_2-s2.0-70349179732
Appears in Collections:Department of Anatomy

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