Orthogonal frequency and code division multiplexing (OFCDM) has received large attention as a modulation scheme to realize high data rate transmission. In this paper, the OFCDM system with fractional sampling (FS) is investigated. FS is a diversity scheme with a single antenna, which achieves path diversity through oversampling and parallel signal reception. However, the correlation among noise components may deteriorate the bit error rate (BER) performance at the receiver as the number of subcarriers and oversampling ratio increase. To overcome this problem, the alternative spreading code is used for the FS OFCDM system. Numerical results through computer simulation show that the proposed scheme can improve the performance of the receiver with the large oversampling ratio and the number of subcarriers.
|出版ステータス||Published - 2008|
|イベント||2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008 - Guangzhou, China|
継続期間: 2008 11月 19 → 2008 11月 21
|Other||2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008|
|Period||08/11/19 → 08/11/21|
ASJC Scopus subject areas
- コンピュータ ネットワークおよび通信