Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26949
Title: Interference-aware cooperative QoS routing in multi-hop wireless networks
Authors: Feng, W
Liu, J
Cao, J 
Yang, L
Xin, Q
Issue Date: 2013
Source: Computers and electrical engineering, 2013, v. 39, no. 6, p. 1650-1666 How to cite?
Journal: Computers and Electrical Engineering 
Abstract: Cooperative communication is a new physical technology, which has the potential to improve QoS support for multi-hop wireless network. Existing works did not consider the interference effect among links while designing cooperative QoS routing. To overcome this limitation, this paper targets at designing an interference-aware Cooperative QoS routing algorithm (CQ-routing) to satisfy users' bandwidth requirement. We formulate the problem of finding cooperative routing path with maximum available bandwidth as an optimization problem, called Coop-routing problem. We prove that the Coop-routing problem is strong NP-hard. We propose both centralized and distributed algorithm to solve the Coop-routing problem. We prove that the centralized algorithm can achieve a constant approximation ratio. We evaluate the performance of these algorithms through simulations. The results show that CQ-routing algorithms can significantly improve the network performance in terms of available bandwidth and number of admitted flows.
URI: http://hdl.handle.net/10397/26949
ISSN: 0045-7906
DOI: 10.1016/j.compeleceng.2012.08.006
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