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http://dx.doi.org/10.7840/kics.2017.42.1.268

Novel Detection Schemes Based on the Unified Receiver Architecture for SWIPT  

Kang, Jinho (KAIST, School of Electrical Engineering)
Kim, Young-bin (KAIST, School of Electrical Engineering)
Shin, Dae Kyu (Samsung Electronics)
Choi, Wan (KAIST, School of Electrical Engineering)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.42, no.1, 2017 , pp. 268-278 More about this Journal
Abstract
In this paper, we propose two novel detection schemes with low-complexity based on the unified receiver architecture which minimizes a fundamental tradeoff at rate-energy region in SWIPT system. The proposed detection schemes are twofold: The two-stage detection scheme and Euclidean distance combination detection scheme. The two-stage detection scheme detects amplitude information of symbols from rectified signals for energy harvesting. In the sequel, it detects symbols based on phase information of baseband signals for information decoding. The Euclidean distance combination detection scheme detects symbols using linear positive-weighted sum of two metrics: Euclidean distance based on baseband signals for information decoding and Euclidean distance based on rectified signals for energy harvesting. For numerical results, we confirm that the proposed detection scheme can achieve better performance than the conventional scheme in terms of symbol error rate, symbol success rate-energy region and achievable rate-energy region.
Keywords
SWIPT; Receiver architecture; Detection scheme; Rate-energy region;
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