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

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WiCom.2008.507

Filename

4678416