欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对传统Gray映射在中高信噪比区域内对系统性能改善有限，通过调整比特位置分配，基于互信息分析提出一种新颖的16QAM星座映射方案，该方案提高了映射比特位的不等保护度。并根据互信息设计准则，仿真分析了不同调制映射方案下BICM—ID系统的调制受限信道容量，仿真分析表明：在中高信噪比下，新映射方案较传统Gray映射方案在信道容量上的提高最高可达2．38bit／channel。
英文摘要：
Considering the traditional Gray mapping achieves limited performance at medium-to-high SNR region, in order to optimize the performance at mid-high SNR region for BICM-ID system, a new scheme of constellation mapping of 16QAM was proposed by redistributing bit position. This novel mapping manages to raise the unequal degree of protection. Finally, experiments based on the criterion of mutual information analysis are performed. Through analysis and comparisons with several previous constellation mapping schemes in terms of channel capacity in BICM-ID system, simulation results reveal that the novel mappings outperform the Gray mapping scheme in the aspect of channel capacity which indicates about 2.38 bit/channel at medium-to-high SNR region.
同期刊论文项目
同项目期刊论文
An Optical Multicast Packet Switching Architecture Shared with Limited-Range Multi-wavelength conver
A Delay-Constrained Low-cost Optical Multicast Routing Algorithm Bsed on Imporve Harmony Search Algo
A novel contention resolution scheme of hybrid shared wavelength conversion for optical packet switc
An optical packet contention resolution supporting QoS differentiation with LRWC wavelength converte
Shortest path first to optimize the optical multicast routing cost and wavelength consumption for WD
A distributed backoff-channel deflection algorithm with load balancing for optical burst switching n
Comparative analysis on the performance of two concatenated codes for high-speed long-haul optical c
A novel segment-shared protection algorithm based on dynamic domain-sequencing scheme for multi-doma
A novel decoding algorithm based on the hierarchical reliable strategy for SCG-LDPC codes in optical
Algebraic criteria for second-order global consensus in multi-agent networks with intrinsic nonlinea
期刊信息
位置：