BROWSE
Detail
Conference Paper
Performance of an LDPC-coded frequency-hopping OFDMA system based on resource allocation in the uplink
Cited - time in 
Share 
Share
- Authors
- Yun Hee Kim, Kwang Soon Kim, Jae Young Ahn
- Issue Date
- 2004-05
- Citation
- Vehicular Technology Conference (VTC) 2004 (Spring), pp.1925-1928
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- An LDPC-coded frequency hopping OFDMA system is proposed for the uplink of cellular systems, where the frequency hopping is based on a resource block (RB) for coherent demodulation. For the system, two different RB types are considered, either for better intercell interference averaging capability or for better channel estimation performance. A turbo receiver with iterative channel estimation and decoding is also proposed to provide better channel estimation performance without boosting the pilot power. The performance is evaluated both in single- and multi-cell environments to investigate the effect of the interference on the overall system performance.
- KSP Keywords
- Cellular system, Channel estimation(CE), Iterative channel estimation, Multi-cell, Overall system performance, Pilot power, Resource Block(RB), Turbo receiver, coherent demodulation, estimation performance, frequency hopping