Traffic-adaptive, flow-specific medium access for wireless networks
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Authors
Walker, T. Owen, III
Subjects
Flow-specific
Traffic-adaptive
Cross layer
Medium access control
Wireless
Energy-efficiency
Preamble sampling
Networked satellite systems
Traffic-adaptive
Cross layer
Medium access control
Wireless
Energy-efficiency
Preamble sampling
Networked satellite systems
Advisors
Tummala, Murali
McEachen, John
Date of Issue
2009-09
Date
September 2009
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
This dissertation pioneers the concept of traffic-adaptive, flow-specific medium access and demonstrates that it
outperforms contention, non-contention and hybrid techniques. The novel traffic-adaptive Cooperative Wireless Sensor
Network Medium Access Control (CWS-MAC) scheme is proposed and shown to provide better throughput and delay
performance than slotted, non-persistent carrier sense multiple access (CSMA), upon which the IEEE 802.11 standard is based,
and time division multiple access (TDMA). A general model for traffic-adaptive, flow-specific medium access control is
developed and hybrid, contention and non-contention schemes are shown to be special cases.
This work also compares the energy efficiency of centralized and distributed solutions and proposes an energyefficient
version of traffic-adaptive CWS-MAC that includes an adaptive sleep cycle coordinated through the use of preamble
sampling. A preamble sampling probability parameter is introduced to manage the trade-off between energy efficiency and
throughput and delay performance.
Finally, this research quantifies the effect of large propagation delays on contention and contention-free medium
access and proposes a flow-specific medium access scheme for networked satellite systems that is based on traffic-adaptive
CWS-MAC and is shown to outperform both CSMA- and TDMA-based solutions.
Type
Thesis
Description
Series/Report No
Department
Electrical and Computer Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.