Single Busy Tone CDMA-A Novel Multiple Access Protocol for Mobile Ad Hoc Network  

作　　者：ZHOU Xiaodong LI Jiandong YANG Jun 

机构地区：[1]National Key Laboratory of ISN, Information Science Institute, Xidian University, Xi＇an 710071, China [2]Depatment of Computing ＆ Information System, University of Luton, LU13JU, UK

出　　处：《Chinese Journal of Electronics》2005年第4期656-660,共5页电子学报（英文版）

摘　　要：A Single busy tone Code division multiple access （SBT-CDMA） protocol for Mobile ad hoc network （MANET） is proposed. The RTS/CTS （request-to-send/clear-to-send） handshake mechanism, busy tone and power control are integrated with CDMA to improve the network performance. The RTS/CTS dialogue is used for the CDMA-code allocation and exchange of the power control information. Based on the difference between the calculation value and measurement value of the received busy tone power, a node can ascertain whether it could initialize a RTS packet transmission. Based on the realtime estimation of the channel gain, the transmission power of a data packet sender can be controlled exactly not only to improve the anti-MAI （multiple access interference） ability of the desired receiver, but also to reduce the interference on the undesired receivers around the sender. Simulation results show that SBT-CDMA can significantly reduce the packet collision and increase the network throughput with lower energy consumption, and the near-far problem is also overcomed.

关 键 词：Mobile ad hoc network Busy tone Power control CDMA （Code division multiple access） Network throughput 

分 类 号：TN929.533[电子电信—通信与信息系统]