Title :
Adjacent channel interference aware channel assignment scheme for WLANs
Author :
Kim, Yong Hyu ; Jeong, Jiwoong ; Kim, Chong-Kwon
Author_Institution :
Dept. of Comput. Eng., Seoul Nat. Univ., Seoul, South Korea
Abstract :
As the deployment of wireless devices becomes widespread, the performance reduction due to interference between wireless channels incur a new research issue. Thus, the channel assignment scheme for reducing the interference is very important in IEEE 802.11-based Wireless LANs. However, most previous approaches have focused on 2.4GHz spectral band or have assumed that there is no interference between non-overlapping channels. In this paper, we investigate adjacent channel interference (ACI) between non-overlapping channels. We find out that the ACI has a great impact on the throughput performance via experimental results. We also propose a new channel assignment scheme which minimizes the ACI. The proposed scheme allocates the channel so as to maximize the system utilization based on the information of neighbor channel state. To evaluate the proposed scheme, we conduct extensive experiments on a wireless testbed. We also show that the proposed scheme achieves superior network performance.
Keywords :
Channel allocation; Interchannel interference; Network topology; Throughput; Topology; Wireless communication; ACI; Channel assignment; IEEE 802.11; Overlapping channel;
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2010 Second International Conference on
Conference_Location :
Jeju Island, Korea (South)
Print_ISBN :
978-1-4244-8088-3
DOI :
10.1109/ICUFN.2010.5547197