The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance Analysis of STTC-based Dual Virtual Cell System under The Overlay Convergent Networks of Cognitive Networking

중첩 융합 네트워크 환경에서 STTC기반 이중 셀 시스템의 성능분석

  • 권은미 (이화여자대학교 전자공학전공 무선멀티미디어통신 연구실) ;
  • 김정호 (이화여자대학교 전자공학전공 무선멀티미디어통신 연구실)
  • Received : 2012.04.11
  • Accepted : 2012.07.13
  • Published : 2012.07.31
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Abstract

In order to achieve high capacity and reliable link quality of the overlay convergent networks with the cognitive networking based on the advanced capability of the mobile terminal, a Distributed Wireless Communication System (DWCS) can provide the capability of enhancing the link quality. This paper has considered virtual cell: the Dual Virtual Cell (DVC), and also proposes DVC employment strategy based on radio resource monitering. The considered system constructs DVC for multi-user high-rate data transmission, and the DWCS system exploits space-time trellis codes i.e., STTC to improve a spectral efficiency. The effects of imperfect CSI(channel state information) on the system performance has also been investigated.

인지 기반 중첩 융합 네트워크 환경 하에서의 서비스 성능이 중요한 이슈로 떠오르는 가운데 단말기의 기능성이 좋아짐에 따라 스마트한 지능을 기반으로 자원의 효과적 활용에 적합한 개별 이종네트워크의 특성분석과 특성을 반영하는 시스템측면의 최적화가 매우 중요하게 되었다. 본 논문에서는 기지국의 소형화와 지능화가 진행되는 가운데 기지국 hotelling과 같은 기지국 집중화를 통한 통합적 최적화가 가능하므로 이에 대응한 이중 가상 셀 시스템의 특성에 대해 살펴보고 활용도 측면의 성능을 분석하였다. 또한 채널정보의 부정확성으로 인한 오류의 영향에 대해서 시뮬레이션을 통하여 정량적인 분석을 진행하고 의미하는 바를 논의하였다.

Keywords

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