Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective
This paper presents an analytical framework to derive the closed-form expressions for diversity-multiplexing tradeoff (DMT) for wireless energy harvesting (WEH) based amplify-and-forward (AF) and decode-and-forward (DF) protocols in finite signal-to-noise (SNR) regime. The results of this investigat...
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/144819 |
| _version_ | 1826113311992709120 |
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| author | Rao, Yepuri Sudhakara Madhukumar, A. S. Sirigina, Rajendra Prasad |
| author2 | School of Computer Science and Engineering |
| author_facet | School of Computer Science and Engineering Rao, Yepuri Sudhakara Madhukumar, A. S. Sirigina, Rajendra Prasad |
| author_sort | Rao, Yepuri Sudhakara |
| collection | NTU |
| description | This paper presents an analytical framework to derive the closed-form expressions for diversity-multiplexing tradeoff (DMT) for wireless energy harvesting (WEH) based amplify-and-forward (AF) and decode-and-forward (DF) protocols in finite signal-to-noise (SNR) regime. The results of this investigation suggest that both AF and DF offer similar performance except for few nuances. At low multiplexing gains, DF offers marginally better performance in the low SNR regime, whereas AF performs better in the high SNR scenarios. However, in the higher multiplexing gain regime, though subtle, DF uniformly dominates AF across all SNRs. Furthermore, an analytical study is presented to evaluate the effect of the fraction of time devoted to WEH (time-sharing parameter, ε) on the finite SNR DMT (f-DMT). In addition, the impact of relay position on the outage performance is also presented. A distinguishing feature of the proposed work is the characterization of WEH-based fDMT which reveals the complete interplay between the operating SNR and the time-sharing parameter (ε), which is of fundamental importance to system designers. Finally, Monte-Carlo simulations are provided to confirm the veracity of analytical solutions. |
| first_indexed | 2024-10-01T03:21:29Z |
| format | Journal Article |
| id | ntu-10356/144819 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:21:29Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1448192020-11-25T07:01:11Z Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective Rao, Yepuri Sudhakara Madhukumar, A. S. Sirigina, Rajendra Prasad School of Computer Science and Engineering Engineering::Computer science and engineering Wireless Energy Harvesting Relays This paper presents an analytical framework to derive the closed-form expressions for diversity-multiplexing tradeoff (DMT) for wireless energy harvesting (WEH) based amplify-and-forward (AF) and decode-and-forward (DF) protocols in finite signal-to-noise (SNR) regime. The results of this investigation suggest that both AF and DF offer similar performance except for few nuances. At low multiplexing gains, DF offers marginally better performance in the low SNR regime, whereas AF performs better in the high SNR scenarios. However, in the higher multiplexing gain regime, though subtle, DF uniformly dominates AF across all SNRs. Furthermore, an analytical study is presented to evaluate the effect of the fraction of time devoted to WEH (time-sharing parameter, ε) on the finite SNR DMT (f-DMT). In addition, the impact of relay position on the outage performance is also presented. A distinguishing feature of the proposed work is the characterization of WEH-based fDMT which reveals the complete interplay between the operating SNR and the time-sharing parameter (ε), which is of fundamental importance to system designers. Finally, Monte-Carlo simulations are provided to confirm the veracity of analytical solutions. Accepted version 2020-11-25T07:01:11Z 2020-11-25T07:01:11Z 2019 Journal Article Rao, Y. S., Madhukumar, A. S., & Sirigina, R. P. (2020). Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective. IEEE Transactions on Green Communications and Networking, 4(1), 277-288. doi:10.1109/TGCN.2019.2948947 2473-2400 https://hdl.handle.net/10356/144819 10.1109/TGCN.2019.2948947 1 4 277 288 en IEEE Transactions on Green Communications and Networking © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TGCN.2019.2948947 application/pdf |
| spellingShingle | Engineering::Computer science and engineering Wireless Energy Harvesting Relays Rao, Yepuri Sudhakara Madhukumar, A. S. Sirigina, Rajendra Prasad Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title | Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title_full | Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title_fullStr | Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title_full_unstemmed | Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title_short | Wireless energy harvesting-based relaying : a finite-SNR diversity-multiplexing tradeoff perspective |
| title_sort | wireless energy harvesting based relaying a finite snr diversity multiplexing tradeoff perspective |
| topic | Engineering::Computer science and engineering Wireless Energy Harvesting Relays |
| url | https://hdl.handle.net/10356/144819 |
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