Q-CMRA: Queue-Based Channel-Measurement and Rate-Allocation

Author

Bhargava, Vidur ; Jose, Jubin ; Srinivasan, Kannan ; Vishwanath, Sriram

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA

Volume

11

Issue

11

fYear

2012

fDate

11/1/2012 12:00:00 AM

Firstpage

4214

Lastpage

4223

Abstract

In traditional wireless protocols, medium-access-control and physical-layer rate-allocation are performed separately. This paper makes the case for combining the two into a single cross-layer framework. It presents the design, implementation, and evaluation of queue-based channel-measurement and rate-allocation (Q-CMRA) that is based on this single cross-layer framework. Q-CMRA´s distributed algorithms utilize both queue-state and channel-state to jointly control medium-access and rate-allocation. Such joint control is essential to improving spatial-reuse and total network throughput. In our experiments, Q-CMRA outperforms traditional CSMA-CA and doubles the total network throughput in some setups.

Keywords

carrier sense multiple access; protocols; queueing theory; CSMA-CA; Q-CMRA; medium-access-control; physical-layer rate-allocation; queue-based channel-measurement; spatial-reuse; wireless protocols; Ad hoc networks; Current measurement; IEEE 802.11 Standards; Interference; Resource management; Wireless communication; Wireless sensor networks; Cross-layer design; ad-hoc networks; medium-access-control; mesh networks; rate-allocation;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2012.091812.120813

Filename

6314472