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On the Application of Cyclic Delay Diversity to Distributed SC-FDMA Systems  

Rim, Min-Joong (Department of Information and Communications Engineering, Dongguk University)
Publication Information
Abstract
In distributed-allocation OFDMA systems, cyclic delay diversify can improve the system performance by increasing frequency diversity. However, applying cyclic delay diversify to distributed-allocation SC-FDMA systems can affect the performance in two contrary ways: positive effect due to increased frequency diversity and negative effect caused by increased frequency selective channels. This paper addresses these two contrary effects and discusses about when cyclic delay diversity is useful and when it is not very useful for distributed-allocation SC-FDMA systems.
Keywords
SC-FDMA; SC-FDE; CDD; Diversity; Frequency Selective Channel;
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