Dirty Paper Coding with phase reshaping: New integration scheme for broadcast and unicast
- Resource Type
- Conference
- Authors
- Chao, Hua; Chen, Yu; Hu, Zhongji
- Source
- 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on. :2355-2359 Sep, 2009
- Subject
- Communication, Networking and Broadcast Technologies
Fields, Waves and Electromagnetics
Broadcasting
Unicast
Interference
Resource management
Time division multiplexing
OFDM
Scheduling
Costs
Chaos
Technological innovation
dirty paper coding (DPC)
DPC integration
TDM
Tomlinson-Harashima precoding (THP)
Structured DPC (SDPC)
DPC with phase reshaping (DPC-PR)
broadcast
SFN
- Language
- ISSN
- 2166-9570
2166-9589
This paper proposes a new integration scheme for broadcast and unicast in future OFDM system based on Dirty Paper Coding (DPC) to release the orthogonal resource allocation limitation to systems today. Based on the proposed DPC integration architecture, we focus on one-dimensional DPC to optimize the unicast throughput as well as guarantee the coverage of broadcast. It is shown that there is inevitable precoding loss of Tomlinson-Harashima precoding (THP) and structured DPC (SDPC) as they only consider signal amplitude for DPC encoding. The proposed DPC method, called as DPC with phase reshaping (DPC-PR), establishes a connection between DPC and phase reconstruction at the receiver. For QPSK case, link level simulation results prove that DPC-PR outperforms SDPC up to 4dB in AWGN channel. System level performance is also investigated in this paper where unicast applies DPC with known interference of broadcast and broadcast works on single frequency network (SFN) manner. Performances without DPC integration are shown for comparison.