For burst mode in slowly time-varying channel, channel state information can be obtained mostly based on preamble and supposed maintain constant. In fact, for different OFDM symbol, channel change slowly, so the assumption degrades the system performance. A low-complexity technique is presented to estimate and track the channel for ZP-OFDM. Channel state information can be obtained in the first OFDM symbol based on comb-type pilots and tracked by insert a bit in time-domain for others OFDM symbols. Simulation results verify the improved performance of the proposed method.
|Number of pages||4|
|Journal||Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology|
|Publication status||Published - Nov 2007|
- Burst mode
- Channel estimation
ASJC Scopus subject areas
- Electrical and Electronic Engineering