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ICS(Interference Cancellation System) in Wireless Repeater Using Complex Singed Singed LMS Algorithm  

Lee, Seong-Jae (RFWindow)
Park, Yong-Wan (Department of Information& Communication, Yeungnam University)
Hong, Seung-Mo (RFWindow)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.10, 2011 , pp. 53-59 More about this Journal
Abstract
In recent years, mobile communication service is used extensively as a larger service area for the maintenance of quality of service required by the expansion of service areas and As the ever-increasing role in relays, and the location is relatively easy to install and less constrained costs, operating cost savings in terms of ICS(Interference Cancellation System) repeaters are required. However, an adaptive algorithm that is applied when updating the filter due to the increase in volume of operations increase the complexity of hardware implementation is fraught with many difficulties. In this paper, if there is a path that feedback. ICS repeater utilizing baseband signal processing for the removal of interfering signals from the feedback operation, significantly reducing the amount of reducing hardware complexity Complex Singed Signed LMS adaption algorithm is proposed. Proposed algorithm for evaluating the performance of Static channel WCDMA signal environment for the ICS, the results of the simulation algorithm, convergence speed and better performance in therms of convergence errors that are required through the implementation of the operation greatly reduces the amount of hardware complexity able to reduce the effect was visible.
Keywords
Interference Cancellation; Feedback Interference; Multipath Channel; WCDMA; Channel Estimation;
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