A channel assignment scheme for MIMO on concentric-hexagon-based multi-channel wireless networks. (17th November 2020)

• Record Type: Journal Article
• Authors: Leu, Fang-Yie; Susanto, Heru; Tsai, Kun-Lin; Ko, Chia-Yin
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 35:Number 4(2020)
• Page Start: 205
• Page End: 221
• Publication Date: 2020-11-17
• Subjects: wireless networks -- eNB -- signal/frequency interference -- hidden terminal problem -- multi-hidden terminal problem -- channel allocation -- multi-input multi-output -- MIMO; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

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.