Energy-Bandwidth Efficiency Tradeoff in MIMO Multi-Hop Wireless Networks

This paper considers a MIMO multi-hop network and analyzes the relationship between its energy consumption and bandwidth efficiency. Its minimum energy consumption is formulated as an optimization problem. By taking both transmit antennas (TAs) and receive antennas (RAs) into consideration, the ener...

Full description

Saved in:
Bibliographic Details
Published in:IEEE journal on selected areas in communications 2011-09, Vol.29 (8), p.1537-1546
Main Authors: Chih-Liang Chen, Stark, W. E., Sau-Gee Chen
Format: Article
Language:English
Subjects:
Antennas
Bandwidth
Communication networks
Communication systems
Computational efficiency
Computer networks
Computing time
Efficiency
Energy consumption
Hops
Measurement
MIMO
Networks
Routing (telecommunications)
Spread spectrum communication
Studies
Transmitters
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper considers a MIMO multi-hop network and analyzes the relationship between its energy consumption and bandwidth efficiency. Its minimum energy consumption is formulated as an optimization problem. By taking both transmit antennas (TAs) and receive antennas (RAs) into consideration, the energy-bandwidth efficiency tradeoff in the networks is investigated. Moreover, the minimum energy of an equally-spaced relaying strategy is investigated for various numbers of antennas. In addition, the minimum energy over all possible antenna pairs is derived. Finally, the effect of the number of hops on the energy-bandwidth efficiency tradeoff is considered. For a fixed antenna pair, the minimum energy over all possible rates and hop numbers are obtained. Generally, the routes with more hops minimize the energy consumption in the low effective rate region. On the other hand, in the high effective rate region, the routes with fewer hops minimize the energy consumption.
ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2011.110904