Real-Time Adaptive LDPC Coded APSK for Aeronautical Telemetry

被引：0
|
作者：
Zou, Ding [1 ]
Djordjevic, Ivan. B. [1 ]
机构：
[1] Univ Arizona, Dept Elect & Comp Engn, 1230 E Speedway Blvd, Tucson, AZ 85719 USA
来源：
2017 13TH INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES, SYSTEMS AND SERVICES IN TELECOMMUNICATIONS (TELSIKS) | 2017年
关键词：
Aeronautical telemetry; LDPC coding; APSK; FPGA; coded modulation; adaptive coding;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we consider the design of capacity-approaching forward error correction (FEC) coded amplitude phase shift keying (APSK) modulation schemes for use in the aeronautical telemetry. By maximizing the mutual information, we first investigate the designs of APSK modulations suitable for communication over nonlinear wireless channels. Then we propose a unified FPGA-based hardware-efficient architecture which combines the capacity-approaching LDPC decoders with four APSK modulation formats, including Gray-mapping-based 8-APSK, 16-APSK, 32-APSK, and 64-APSK. The proposed architecture allows the flexibility of the FEC-encoded signal to be received by legacy test-range systems. The emulation results show that such an LDPC-coded modulation scheme can adapt to wide range of received signal-to-noise ratios, ranging from 9.4 dB to 21.4 dB, by using different LDPC codes and/or modulation formats.
引用
收藏
页码：321 / 325
页数：5
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