|
|
|
| A New Pre-coding Scheme Based on Maximum of Carrier-to-Interference Ration for OFDM Systems |
| Yu Fei; Yang Lü-xi |
| Department of Radio Engineering, Southeast University, Nanjing 210096, China |
|
|
|
|
Abstract Orthogonal Frequency Division Multiplexing (OFDM) systems is very sensitive to frequency errors. An easy pre-coding scheme with rate 1/2 can reduce this sensitivity to frequency offset and compress the inter-carrier interference. A new pre-coding scheme based on the maximum of carrier-to-interference is proposed in this article. It can efficiently find the pre-coding parameter with known frequency offset. The simulation results shown that the new pre-coding scheme can outperform the traditional one.
|
|
Received: 19 September 2005
|
|
|
|
|
|
|
|
|
2007, Vol. 29 
