Title :
Performance Analysis of the Acknowledgment-Type-ALOHA-CDMA Channels
Author :
Shao, Jianhua ; Yin, Kuixi ; Wang, Xinghe ; Zhao, Hua
Author_Institution :
Optoelectron. Key Lab. of Jiangsu Province, Nanjing Normal Univ., Nanjing
Abstract :
In order to simplifying the synchronization equipments of network in the slotted ALOHA-CDMA channel, a new kind of acknowledgment-type-ALOHA-CDMA Channel based on multiple codes spread spectrum is proposed for the first time in this paper. First, a model of this channel is established and several hypotheses of this channel are given. Then, interference between subsystems is obtained and the channel capacity is studied. And last, two parameters of diffusion process are calculated and the stability of ACK-ALOHA-CDMA channel is investigated. Simulation results show that a significant performance improvement and high-bandwidth efficiency can be gained by using this channel. Consequently, ACK-ALOHA- CDMA channel is very suitable for application in satellite VSAT systems and distributed packet radio networks.
Keywords :
access protocols; code division multiple access; wireless channels; acknowledgment-type-ALOHA-CDMA channels; channel capacity; diffusion process; distributed packet radio networks; multiple codes spread spectrum; Channel capacity; Diffusion processes; Interference; Laboratories; Packet radio networks; Performance analysis; Satellite broadcasting; Spread spectrum communication; Stability analysis; Throughput;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.507
