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Joint Detection Technique Effective to Other Cell Interference in the Next Generation Hybrid TD-CDMA Mobile Communication Systems  

Chang Jin-Weon (국립한경대학교 정보제어공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.10, no.1, 2006 , pp. 42-48 More about this Journal
Abstract
In this paper a joint detection method for other cell interference cancellation is proposed in the next generation hybrid TD-CDMA mobile communication systems. A joint detection technique, a most characteristic feature of hybrid TD-CDMA mobile communication systems. retrieves users' data in the same time slot simultaneously with the elimination of multiple user interference. Previously a two stage joint detection method was proposed to cancel other cell interference as well as multiple user interference in the target cell. However the previous scheme does not have concrete ways to recognize other cell users who give major interference to the target cell. Thus all users in neighbor other cells has to be jointly detected and it causes huge complexity of the two stage joint detection. In this paper a method is proposed to perform two stage joint detection according to users' interference with the target cell. Performances of the proposed scheme are investigated through simulations and compared to the previous method the proposed method has no performance degradation and also lower the complexity of two stage joint detection significantly.
Keywords
복합 시분할 부호분할 다중접속 방식;주변 셀 간섭 제거;결합 검출 방식;차세대 이동통신 기술;
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