Unlicensed Spectrum Usage Method for Cellular Communication Systems

Author

Zhang Ning ; Ma Saisai ; Xu Jing ; Zhou Bin ; Zou Wei

Author_Institution

Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

1

Lastpage

6

Abstract

Cellular systems operate on ISM band with the co-existence of wide-deployed WLAN is a promising solution to offload the crowded cellular band, where cellular device acting as virtual a WLAN station contends for WLAN channel resource via applying the same IEEE 802.11 Distributed Coordination Function(DCF) as WLAN rivals is a straightforward way. However, the conventional mechanism cannot fully utilize the spectrum resource, we propose an adaptive probability access (APA) method which could adjust the channel access probability of cellular system by maximizing the proportional fairness throughput of both systems. This method can adjust the cellular access probability step by step to ensure that both cellular and WLAN work near the optimum operating spot. Simulation results show that the proposed APA method improves both the proportional fairness and total throughput.

Keywords

cellular radio; probability; radio spectrum management; wireless LAN; wireless channels; APA method; IEEE 802.11 DCF; IEEE 802.11 distributed coordination function; ISM band; WLAN channel resource; WLAN station; adaptive probability access method; cellular communication systems; cellular device; channel access probability; crowded cellular band; spectrum resource; unlicensed spectrum usage method; wide-deployed WLAN; Adaptive systems; IEEE 802.11 Standards; Multiaccess communication; Simulation; Throughput; Wireless LAN; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on

Conference_Location

Shanghai

ISSN

2161-9646

Print_ISBN

978-1-61284-684-2

Type

conf

DOI

10.1109/WiCOM.2012.6478733

Filename

6478733