Title :
Packet combining with adaptive retransmission control in DS-CDMA random access networks
Author :
Ali, Mohammed Z. ; Torlak, Murat
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas, Richardson, TX, USA
Abstract :
Packet combining with adaptive retransmission control (ARC) in DS-CDMA random access networks has been investigated. The proposed system uses diversity packet combining while adaptively adjusting the retransmission probability of backlog users to optimize packet retransmissions. A soft decision DS-CDMA analysis is used to derive the optimum channel input for ARC. Simulation results show that packet combining with ARC can significantly increase the throughput and maintain the performance very close to its optimum in the high traffic region.
Keywords :
adaptive control; code division multiple access; diversity reception; packet radio networks; radio access networks; spread spectrum communication; telecommunication channels; telecommunication control; telecommunication traffic; adaptive retransmission control; optimum channel input; random access networks packet combining; soft decision DS-CDMA analysis; traffic region; Adaptive control; Bit error rate; Communication system traffic control; Diversity reception; Intelligent networks; Multiaccess communication; Programmable control; Signal to noise ratio; Throughput; Traffic control; 65; ARC; Adaptive retransmission control; DS-CDMA; packet combining; retransmission;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.837638
