Title :
Performance analysis of DS-CDMA with slotted ALOHA random access for packet PCNs
Author :
Liu, Zhao ; El Zarki, Magda
Author_Institution :
Pennsylvania Univ., Philadelphia, PA, USA
Abstract :
Presents a discrete Markov chain based analytic framework for the study of DS-CDMA with slotted ALOHA (DS-CDMA-S-ALOHA) random access protocols. The key feature of the work is that it distinguishes between the two stages in the transmission process, namely the access stage and the reception stage, which characterize the random access and the random errors associated with DS-CDMA-S-ALOHA respectively. Two DS-CDMA-S-ALOHA protocols are presented and analyzed. The performance of the protocols and the effects of the design parameters are evaluated numerically and compared with a bandwidth equivalent multi-channel slotted ALOHA system. The results show that with proper design, the DS-CDMA-S-ALOHA protocols can double the throughput with respect to that of a bandwidth equivalent multi-channel slotted ALOHA system
Keywords :
Markov processes; access protocols; code division multiple access; packet radio networks; personal communication networks; pseudonoise codes; random processes; spread spectrum communication; DS-CDMA; DS-CDMA-S-ALOHA; access stage; bandwidth equivalent multi-channel slotted ALOHA system; design parameters; discrete Markov chain based analytic framework; packet PCNs; performance analysis; random access; random access protocols; random errors; reception stage; slotted ALOHA random access; throughput; transmission process; Access protocols; Bandwidth; Base stations; Electronic mail; Interference; Microcell networks; Multiaccess communication; Performance analysis; Personal communication networks; Throughput;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.529413
