A mobile controlled algorithm for improving the throughput in a s-aloha ds-cdma system
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
This paper presents a novel adaptive DS-CDMA slotted-ALOHA packet random access scheme with transmitter-based spreading codes for mobiles. It is aimed at improving the throughput and message delay delivery when traffic load values below the saturation point of the conventional DS-CDMA slotted-ALOHA system are sensed in the channel. For this purpose a mobile assisted algorithm is envisaged to control the change of the transmission rate according to the traffic load. This algorithm revealed that the optimum behavior, obtained using a Markov chain model, may be almost reached at a low complexity cost. Moreover, priorities between mobiles could be easily established. Finally, a traffic model based on a realistic statistical length distribution of the messages illustrates how the delay delivery can be greatly reduced.
CitationSallent, J., Agusti, R. A mobile controlled algorithm for improving the throughput in a s-aloha ds-cdma system. A: PIMRC '96. 7th IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS. "IEEE Proceedings 7th Personal, Indoor and Mobile Radio Communications". TAIPEI: Institute of Electrical and Electronics Engineers (IEEE), 1996, p. 1192-1196.