Traffic-adaptive, flow-specific medium access for wireless networks
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Authors
Walker, T. Owens
Tummala, Murali
McEachen, John
Subjects
Flow-specific
Traffic-adaptive
Cross layer
Medium access control
Wireless sensor network
Traffic-adaptive
Cross layer
Medium access control
Wireless sensor network
Advisors
Date of Issue
2009-08
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
In this report, we formally introduce the novel concept of traffic-adaptive, flow-specific medium access control and show that it outperforms contention, non-contention and hybrid medium access schemes. A traffic-adaptive, flow-specific mechanism is proposed that utilizes flow-specific queue size statistics to select between medium access modes. A general model for traffic adaptive, flow-specific medium access control is developed and it is shown that hybrid medium access as well as traditional contention-based and non-contention schemes can be seen as special cases of the more general flow-specific access. The two flow, two-mode case of the general model is developed in detail and it is shown analytically that this queue-based implementation of traffic-adaptive, flow-specific medium access outperforms contention, non-contention, and hybrid approaches. The proposed traffic-adaptive, flow-specific mechanism is applied to Cooperative Wireless Sensor Network Medium Access Control (CWS-MAC) a flow-specific medium access protocol. Performance is evaluated is evaluated and compared to the traditional medium access approaches. Both analytical and simulation results are provided including the development of throughput and delay expressions for slotted ALOHA with periodic server vacations.
Type
Technical Report
Description
Series/Report No
Organization
Identifiers
NPS Report Number
NPS-EC-09-002
Sponsors
Special Operations Command (U.S.)
Space and Naval Warfare Systems Center Atlantic
Space and Naval Warfare Systems Center Atlantic
Funding
Format
viii, 72 p.: ill. (some col.);28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.