Projects: Multi-Channel and Multi-Radio Media Access Control for Co-existing Wireless Networks

Traditional single-channel MAC protocols for wireless ad hoc and sensor networks favor energy-efficiency over throughput. More recent multi-channel MAC protocols display higher throughput but less energy efficiency. In this project we propose NAMAC, a negotiator-based multi-channel MAC protocol in which specially designated nodes maintain the sleeping and communication schedules of nodes. Negotiators facilitate the assignation of channels and coordination of communications windows, thus allowing individual nodes to sleep and save energy. We also investigate the negotiator coverage problems in this type of negotiator-based network and propose solutions for multiple coverage schemes.
We gratefully acknowledge the partial funding of this research by NSF.

Members

Papers

  • H. Chenji, R. Stoleru, "On Combining Duty-Cycling with Network Coding in Flood-based Sensor Networks," in IEEE Transactions on Mobile Computing (TMC), 2012.
  • R. Chandanala, R. Stoleru, M. Won, "On Combining Duty-Cycling with Network Coding in Flood-based Sensor Networks," in AdHoc Networks (Elsevier), major review submitted 2012.
  • W. Zhou, M. Won, R. Stoleru, "Energy Efficient Multi-Channel Media Access Control for Dense Wireless Ad Hoc and Sensor Networks," in Wireless Networks (Springer), major review submitted 2012.
  • R. Chandanala, R. Stoleru, "Network Coding in Duty Cycled Sensor Networks," in Proceedings of IEEE Int. Conference on Networked Sensor Systems (INSS), 2010.
  • W. Zhou, R. Stoleru, "Towards Higher Throughput and Energy Efficiency in Dense Wireless Ad Hoc and Sensor Networks," in ACM Symposium on Applied Computing (SAC), 2010

Source Code Releases

  • Monte Carlo simulator for 802.11, 802.15.4 wireless co-existence (Matlab code)
  • NAMAC multichannel MAC protocol (GloMoSim code)