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Performance of Random Access Scheduling Schemes in Multi-Hop Wireless Networks

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2 Author(s)
Changhee Joo ; Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA ; Shroff, N.B.

The scheduling problem in multi-hop wireless networks has been extensively investigated. Although throughput optimal scheduling solutions have been developed in the literature, they are unsuitable for multi-hop wireless systems because they are usually centralized and have very high complexity. In this paper, we develop a random-access based scheduling scheme that utilizes local information. The important features of this scheme include constant-time complexity, distributed operations, and a provable performance guarantee. Analytical results show that it guarantees a larger fraction of the optimal throughput performance than the state-of-the-art. Through simulations with both single-hop and multi-hop traffics, we observe that the scheme provides high throughput, close to that of a well-known highly efficient centralized greedy solution called the greedy maximal scheduler.

Published in:

Networking, IEEE/ACM Transactions on  (Volume:17 ,  Issue: 5 )

Date of Publication:

Oct. 2009

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