Effective method of interference mitigation for UWB cooperation with WiMAX

This paper focuses on interference mitigation schemes capable of implementing to Ultra-wideband (UWB) device and their effects. In addition, the interference analysis´s process and interference mitigation effect in results are described. UWB interference mitigation schemes were introduced to reduce the potential Ultra-wideband (UWB) interference to Worldwide Interoperability for Microwave Access (WiMAX) operating at 3.5 GHz bands: One is the adaptive transmit power control (ATPC) and the other is the hybrid transmit emission control (HTEC) method. The analysis in order to evaluate the UWB inference mitigation effect used the simulation based on the system and the result evaluates WiMAX´s total outage rate in percentile due to the UWB interference. In simulation results, a case of nothing of the interference mitigation was compared with a case of the interference mitigation of the ATPC or the HTEC method in spatially coexisting environment between UWB devices and WiMAX stations. Finally, the HTEC method in the proposed interference mitigation schemes was the best candidate because its interference mitigation effect was improved up to 82% rather than nothing of the interference mitigation in UWB devices.