Living Reference Work Entry

Handbook of Cognitive Radio

pp 1-45

Date: Latest Version

Coexistence of Heterogeneous Cellular Networks

  • Kaigui BianAffiliated withSchool of EECS, Peking University Email author 
  • , Jung-Min Jerry ParkAffiliated withDepartment of Electrical and Computer Engineering, Virginia Tech

Abstract

Many wireless standards for cellular networks (e.g., IEEE 802.11af and IEEE 802.22) have been developed or are currently being developed for enabling opportunistic access to spectrum using cognitive radio (CR) technology. When heterogeneous cellular networks that are based on different wireless standards operate in the same spectrum band, coexistence issues can potentially cause major problems. Enabling coexistence via direct coordination between heterogeneous cellular networks is very challenging due to incompatible MAC/PHY designs of coexisting networks, the conflict of interest issues, as well as customer privacy concerns. This chapter introduces a number of research problems that may arise in the context of coexistence of heterogeneous cellular networks, namely, the hidden terminal problem, the multichannel broadcast problem, the spectrum sharing problem, and the channel contention problem. This chapter also identifies the major challenges for addressing these problems, proposes the guidelines for devising potential solutions, and provides results of performance evaluation on the proposed solutions.