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Capacity of Cooperative Wireless Networks Using Multiple Channels

Summary: Capacity of Cooperative Wireless Networks
Using Multiple Channels
Devu Manikantan Shila, Yu Cheng and Tricha Anjali
Illinois Institute of Technology, Chicago, USA
Abstract--The existence of channel variations (or fading) is
one of the crucial challenges that affects the capacity of wireless
networks. Recently, cooperative communications have emerged
as a promising approach to achieve spatial diversity and thereby
reduce the negative effects of fading on wireless channels. On
the other hand, in addition to channel variations, it is well-
known that interference among concurrent transmissions also
severely limits the network capacity particularly in multi-hop
settings. Recent studies indicate that the use of multiple channels
can reduce the wireless interference and thus greatly improve
the overall network capacity. In this paper, we propose a
model termed as CoopMC which employs multiple channels in
cooperative networks to mitigate the impact of interference. This
work primarily investigates the capacity of CoopMC in multi-hop
settings and derive the asymptotic capacity bounds under random
placements of nodes. Our analysis reveals the important insights


Source: Anjali, Tricha - Department of Electrical and Computer Engineering, Illinois Institute of Technology


Collections: Computer Technologies and Information Sciences; Engineering