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Opportunistic Scheduling for Delay Sensitive Flows in Wireless Networks | IEEE Conference Publication | IEEE Xplore

Opportunistic Scheduling for Delay Sensitive Flows in Wireless Networks


Abstract:

We present an "opportunistic" scheduling policy with the objective of improving delay performance for time-sensitive users in wireless networks. Since packet delay depend...Show More

Abstract:

We present an "opportunistic" scheduling policy with the objective of improving delay performance for time-sensitive users in wireless networks. Since packet delay depends on both resource allocation and time-varying capacity of wireless channels, we introduce a search radius (SR) into the framework of packet fair queueing (PFQ) and employ maximum relative SNR (Max-rSNR) as scheduling rule with the purpose of providing short-term temporal fairness guarantee and improving user throughput. We make theoretical analysis of the delay performance of each user and find that each user's delay is directly related to SR, moreover the value of SR should be restricted within a limited range in order to provide better delay performance to each user. Based on this, we propose a feasible iterative algorithm to achieve an appropriate SR. We conduct an extensive set of simulations, which characterizes the performance of our scheduling scheme.
Date of Conference: 13-16 August 2007
Date Added to IEEE Xplore: 24 September 2007
ISBN Information:
Print ISSN: 1095-2055
Conference Location: Honolulu, HI, USA

References

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