att_abstract={{The IEEE 802.11 standard specifies both radio and MAC protocol design.  We  observe that its CSMA protocol helps avoid much of co-channel interference  at the potential expense of degraded network throughput in a large  multi-cell WLAN network.  Due to the coupling between the physical and MAC  layers, conventional frequency planning and allocation methods for typical  cellular networks cannot be applied directly to the 802.11 network. In this paper, by focusing on interactions among access points based on  their traffic loads and radio propagation, we formulate the channel  assignment for the 802.11 network as a 0-1 programming problem, where one  version of the problem is shown to be NP-complete.  In light of  computational complexity, a heuristic algorithm is proposed and analyzed.   The algorithm is then applied to two cellular settings with known optimal  assignments.  For one of the settings, the proposed technique generates  the optimal channel assignment.  As for the second case of a large  network, although only a suboptimal solution is obtained by the algorithm,  it is shown to be excellent.  Therefore, as the 802.11 networks are widely  deployed, the proposed method can serve as a valuable tool for frequency  planning of large-scale multi-cell WLAN networks. patent pending 11/08/2001 HB84C0000-020815-05TM paper was not published at IEEE ICC 2003, May 11-15 2003; Anchorage, AK;  Copyright re-issued to IEEE VTC Fall 2003. }},
	att_categories={C_NSS.7, C_NSS.18},
	att_tags={WLAN, channel assignment},
	author={Byoung-jo Kim and Kin Leung},
	institution={{IEEE VTC Fall 2003}},
	title={{Frequency assignment for multi-cell IEEE 802.11 wireless networks}},