NDLI: A Tradeoff between Energy and Bandwidth Efficiency in Wireless Networks

Content Provider	IEEE Xplore Digital Library
Author	Bae, Changhun Stark, Wayne E.
Copyright Year	2007
Description	Author affiliation: Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI (Bae, Changhun; Stark, Wayne E.)
Abstract	In this paper, we study the bandwidth efficiency and energy efficiency of wireless ad hoc networks in which the energy supply of nodes and bandwidth are the primary resource constraints. For bandwidth efficiency, we consider the total number of channel uses between source and destination node. Also, energy consumption of the receiver in order to process each coded bit is considered as well as the wasted energy of a nonideal amplifier in the transmitter. With the location of relaying nodes, we investigate the impact on bandwidth efficiency and energy efficiency for both common rate and common power Schemes. All nodes in a network operate in half-duplex mode, hence more channel uses are required in a multihop transmission. This leads to a loss in bandwidth efficiency but a potential gain in energy efficiency because each node can save its transmitting power. We investigate this tradeoff between energy efficiency and bandwidth efficiency of the network similar in nature to that found by Shannon for a single link. We also develop performance characterizations in terms of transport efficiency, which combines bandwidth efficiency and energy efficiency into a single metric. It is shown that equidistant relaying cases perform better than non-equidistant relaying cases for either common rate or common power schemes. For non-equidistant relaying cases, it is also shown that common power schemes achieve a higher bandwidth efficiency than do common rate schemes, whereas energy efficiency depends on the received signal-to-noise ratio at the destination node.
Starting Page	1
Ending Page	7
File Size	316708
Page Count	7
File Format	PDF
ISBN	9781424415120
DOI	10.1109/MILCOM.2007.4454915
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Wireless networks Energy efficiency Relays Mobile ad hoc networks Energy consumption Transmitters Spread spectrum communication Propagation losses Potential energy
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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