A channel assignment scheme for MIMO on concentric-hexagon-based multi-channel wireless networks Online publication date: Fri, 27-Nov-2020
by Fang-Yie Leu; Heru Susanto; Kun-Lin Tsai; Chia-Yin Ko
International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), Vol. 35, No. 4, 2020
Abstract: In a wireless network, multiple channels can increase network capacity. However, it causes other problems, e.g., multi-channel hidden terminal problem and the issue about how to allocate channels to wireless nodes. Basically, a well-defined channel assignment can avoid radio interference and improve transmission performance. Therefore, in this study, we proposed a multiple channel assignment scheme, called concentric-hexagon-oriented multi-channel assignment (CHOMA for short), in which all deployed eNBs are organized as concentric-hexagon (C-hexa for short). Available channels are grouped and then allocated to the C-hexas. We also arrange channels allocated to a C-hexa so as to reduce radio interference among its eNBs, consequentially improving the transmission capability and performance of a wireless network. Experimental results show that the CHOMA is really an interference-free scheme, no matter whether the target system is a network with SISO, SIMO, MISO or MIMO stations.
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