Near-optimum power allocation for BER restricted multihop cooperative networks

Behrouz Maham; Are Hjørungnes

doi:10.1109/ICC.2010.5501931

Near-optimum power allocation for BER restricted multihop cooperative networks

Behrouz Maham, Are Hjørungnes

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Citations (Scopus)

Abstract

Due to the limited energy supplies of nodes, in many applications like wireless sensor networks, energy-efficiency is crucial for extending the networks lifetime. We study the routing problem for multihop wireless ad hoc networks based on cooperative transmission. The source node wants to transmit messages to a single destination. Other nodes in the network may operate as relay nodes. In this paper, we propose a cooperative multihop routing for the purpose of power savings, constrained on a required bit error rate (BER) at the destination. Two efficient power allocation schemes are proposed, which depend only on the statistics of the channels. In the first scheme, each node needs to know only the local channel statistics, and can be implemented in a distributed manner. The second scheme is a centralized power control strategy, which has a higher energy efficiency, at the expense of more complexity and signalling overhead. It is shown that energy savings of 75% are achievable in line networks with 3 relays for BER = 10^-4 constraint at the destination.

Original language	English
Title of host publication	2010 IEEE International Conference on Communications, ICC 2010
DOIs	https://doi.org/10.1109/ICC.2010.5501931
Publication status	Published - Aug 13 2010
Event	2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa Duration: May 23 2010 → May 27 2010

Publication series

Name	IEEE International Conference on Communications
ISSN (Print)	0536-1486

Other

Other	2010 IEEE International Conference on Communications, ICC 2010
Country	South Africa
City	Cape Town
Period	5/23/10 → 5/27/10

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICC.2010.5501931

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Cite this

Maham, B., & Hjørungnes, A. (2010). Near-optimum power allocation for BER restricted multihop cooperative networks. In 2010 IEEE International Conference on Communications, ICC 2010 [5501931] (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2010.5501931

Maham, B & Hjørungnes, A 2010, Near-optimum power allocation for BER restricted multihop cooperative networks. in 2010 IEEE International Conference on Communications, ICC 2010., 5501931, IEEE International Conference on Communications, 2010 IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 5/23/10. https://doi.org/10.1109/ICC.2010.5501931

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