Abstract
In this study, the authors propose a method to minimise the multi-user interference (MUI) caused by multiple access (MA) in a time hopping ultra-wide-band (TH-UWB) system with line-of-sight (LOS) multi-path channel in a residential environment IEEE 802.15.4a channel model. The authors considered both synchronous and asynchronous cases. The problem is formulated as a combinatorial optimisation problem (COP) and solved by means of an efficient optimisation algorithm called guided local search (GLS). The optimisation criterion is the average collision number (ACN). The code optimisation method is validated by simulating the system and computing the binary error rate.
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