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Distributed rate control and contention resolution in multi-cell IEEE 802.11 wlans with hidden terminals

Published: 20 September 2010 Publication History

Abstract

In this paper, we study jointly the problems of rate control and contention resolution in multi-cell WLANs based on the IEEE 802.11 MAC protocol in the presence of hidden terminals. We adopt the network utility maximization (NUM) framework to formulate the problem as a nonlinear optimization problem. Unlike previous approaches that require maximal weight scheduling or target simple MAC protocols without hidden terminals, our problem formulation considers a realistic IEEE 802.11-based MAC layer model. The resulting formulation being non-convex, we propose a simple scheme to transform this non-convex problem into a convex one. We derive a simple distributed algorithm to solve the problem via Lagrangian dual decomposition. Our algorithm does not require exchanges of topology or spatial information about the mobile clients between APs. Practical issues like random backoff, carrier sensing, frame retransmission and optimal contention window (CW) setting are considered in our design. The effectiveness, accuracy and convergence speed of our analytically derived algorithm are verified via numerical experiments and simulations.

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Cited By

View all
  • (2019)Optimal Rate Control for Energy-Harvesting Systems with Random Data and Energy ArrivalsACM Transactions on Sensor Networks10.1145/329353515:1(1-30)Online publication date: 10-Feb-2019
  • (2013)A novel data forwarding scheme in WLANs with hidden terminals2013 IEEE/CIC International Conference on Communications in China (ICCC)10.1109/ICCChina.2013.6671194(657-661)Online publication date: Aug-2013
  • (2012)Low-complexity scheduling for wireless networksProceedings of the thirteenth ACM international symposium on Mobile Ad Hoc Networking and Computing10.1145/2248371.2248380(35-44)Online publication date: 11-Jun-2012

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      cover image ACM Conferences
      MobiHoc '10: Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
      September 2010
      272 pages
      ISBN:9781450301831
      DOI:10.1145/1860093
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Publication History

      Published: 20 September 2010

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      Author Tags

      1. cross-layer control
      2. geometric programming
      3. hidden terminals

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      View all
      • (2019)Optimal Rate Control for Energy-Harvesting Systems with Random Data and Energy ArrivalsACM Transactions on Sensor Networks10.1145/329353515:1(1-30)Online publication date: 10-Feb-2019
      • (2013)A novel data forwarding scheme in WLANs with hidden terminals2013 IEEE/CIC International Conference on Communications in China (ICCC)10.1109/ICCChina.2013.6671194(657-661)Online publication date: Aug-2013
      • (2012)Low-complexity scheduling for wireless networksProceedings of the thirteenth ACM international symposium on Mobile Ad Hoc Networking and Computing10.1145/2248371.2248380(35-44)Online publication date: 11-Jun-2012

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