Title :
Clustered CDMA ad hoc networks without closed-loop power control
Author :
Hasan, Aamir ; Yang, Kevin ; Andrews, Jeffrey G.
Author_Institution :
Wireless Networking & Commun. Group, Texas Univ., Austin, TX, USA
Abstract :
This paper develops a system design for clustered wireless ad hoc networks, combining CSMA and CDMA to enable spatial reuse and simultaneous transmissions. Typically, CDMA networks require fine-tuned power control, but here that requirement is eliminated through a combination of open loop power control, user ordering, and successive interference cancellation (SIC). A network topology with high network awareness via a broadcast CSMA channel is developed. The resulting system increases network throughput and overcomes existing problems with IEEE 802.11.
Keywords :
ad hoc networks; broadcast channels; carrier sense multiple access; code division multiple access; interference suppression; network topology; power control; radiofrequency interference; wireless LAN; CDMA; IEEE 802.11; broadcast CSMA channel; closed-loop power control; clustered wireless ad hoc network; network throughput; network topology; open loop power control; spatial reuse; successive interference cancellation; Ad hoc networks; Interference cancellation; Mobile ad hoc networks; Multiaccess communication; Network topology; Physical layer; Power control; Rayleigh channels; Silicon carbide; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290308