Delay-guaranteed cross-layer scheduling in multihop wireless networks

  • Authors:
  • Dongyue Xue;Eylem Ekici

  • Affiliations:
  • Department of Electrical and Computer Engineering, The Ohio State University, Columbus, OH;Department of Electrical and Computer Engineering, The Ohio State University, Columbus, OH

  • Venue:
  • IEEE/ACM Transactions on Networking (TON)
  • Year:
  • 2013

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Abstract

In this paper, we propose a cross-layer scheduling algorithm that achieves a throughput "ε-close" to the optimal throughput in multihop wireless networks with a tradeoff of O(1/ε) in average end-to-end delay guarantees. The algorithm guarantees finite buffer sizes and aims to solve a joint congestion control, routing, and scheduling problem in a multihop wireless network while satisfying per-flow average end-to-end delay constraints and minimum data rate requirements. This problem has been solved for both backlogged as well as arbitrary arrival rate systems. Moreover, we discuss the design of a class of low-complexity suboptimal algorithms, effects of delayed feedback on the optimal algorithm, and extensions of the proposed algorithm to different interference models with arbitrary link capacities.