Optimal resource allocation in a bandwidth exchange enabled relay network

Muhammad Nazmul Islam, Narayan Mandayam, Sastry Kompella

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


We investigate an incentive mechanism called Bandwidth Exchange (BE) for cooperative forwarding where transmission bandwidth is used as a flexible resource. We focus on a network where two nodes, communicating with the base station (BS) / access point (AP), initially get optimal amount of bandwidth based on direct path transmission and then use their individual bandwidths as flexible incentives for two hop relaying. In our proposed scenario, the forwarder node sends its own data along with the data of the sender in exchange for additional transmission bandwidth, provided by the sender. We compare the performance of the proposed mechanism with optimal bandwidth and power allocation based direct transmission. We use sum rate, max-min rate and min-max power as the evaluation criteria and prove the convex/concave nature of the optimization problem formulations. Our numerical analysis shows that the BE based cooperative forwarding extends the coverage in wireless networks when the far node falls in outage under direct transmission. Further, BE significantly improves the max-min rate and min-max power performance of the network.

Original languageEnglish (US)
Title of host publication2010 Military Communications Conference, MILCOM 2010
Number of pages6
StatePublished - Dec 1 2011
Event2011 IEEE Military Communications Conference, MILCOM 2011 - Baltimore, MD, United States
Duration: Nov 7 2011Nov 10 2011

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM


Other2011 IEEE Military Communications Conference, MILCOM 2011
CountryUnited States
CityBaltimore, MD

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


  • Convex Optimization
  • Incentivized Forwarding
  • Radio Resource Management
  • Relay Network

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