Adaptive modulation in ad hoc DS/CDMA packet radio networks

• Published in: IEEE transactions on communications Vol. 54; no. 4; pp. 714 - 725
• Main Authors: Souryal, M.R., Vojcic, R., Pickholtz, L.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2006; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Ad hoc networks; Adaptive modulation; Applied sciences; Attenuation; Channel state information; Channels; cochannel interference; Code division multiple access; code-division multiaccess; Detection, estimation, filtering, equalization, prediction; Exact sciences and technology; Fading; Information, signal and communications theory; Interference; Modulation; Modulation coding; Modulation, demodulation; Multiaccess communication; Multilevel; Networks; packet radio; Packet radio networks; Radio; Radio networks; Relays; Signal and communications theory; Signal, noise; Spread spectrum communication; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teletraffic; Transmission and modulation (techniques and equipments); Performance evaluation; Parameter estimation; Relay; Cochannel interference; Wireless telecommunication; Data transmission; Rice fading; code-division multiaccess; Lognormal distribution; Packet radio networks; Channel estimation; Random medium; Ad hoc network; Adaptive modulation; Multilevel system; Direct sequence; Mobile radiocommunication; Multiple access; Teletraffic; Signal to interference ratio; Coherent modulation; Multihop network; Code division multiple access; packet radio; Transmission loss; Shadowing

This paper investigates the benefit of adaptive modulation based on channel state information (CSI) in direct-sequence/ code-division multiple-access (DS/CDMA) multihop packet radio networks. By exploiting varying channel conditions, adaptive modulation can be used in ad hoc networks to provide uppe...