Fair coalitions for power-aware routing in wireless networks

Ratul K. Guha, Carl A. Gunter, Saswati Sarkar

Research output: Contribution to journalArticlepeer-review


Several power-aware routing schemes have been developed for wireless networks under the assumption that nodes are willing to sacrifice their power reserves in the interest of the network as a whole. But, in several applications of practical utility, nodes are organized in groups, and as a result, a node is willing to sacrifice in the interest of other nodes in its group but not necessarily for nodes outside its group. Such groups arise naturally as sets of nodes associated with a single owner or task. We consider the premise that groups will share resources with other groups only if each group experiences a reduction in power consumption. Then, the groups may form a coalition in which they route each other's packets. We demonstrate that sharing between groups has different properties from sharing between individuals and investigate fair, mutually beneficial sharing between groups. In particular, we propose a pareto-efficient condition for group sharing based on max-min fairness called fair coalition routing. We propose distributed algorithms for computing the fair coalition routing. Using these algorithms, we demonstrate that fair coalition routing allows different groups to mutually beneficially share their resources.

Original languageEnglish (US)
Pages (from-to)206-220
Number of pages15
JournalIEEE Transactions on Mobile Computing
Issue number2
StatePublished - Feb 2007


  • Algorithm design and analysis
  • Energy-aware systems and routing
  • Wireless communication

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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