On the Performance of X-Duplex Relaying
In this paper, we study an X-duplex relay system with one source, one amplify-and-forward relay, and one destination, where the relay is equipped with a shared antenna and two radio frequency (RF) chains used for transmission or reception. X-duplex relay can adaptively configure the connection betwe...
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| Veröffentlicht in: | IEEE transactions on wireless communications 2017-03, Vol.16 (3), p.1868-1880 |
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| container_end_page | 1880 |
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| container_issue | 3 |
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| container_title | IEEE transactions on wireless communications |
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| creator | Li, Shuai Zhou, Mingxin Wu, Jianjun Song, Lingyang Li, Yonghui Li, Hongbin |
| description | In this paper, we study an X-duplex relay system with one source, one amplify-and-forward relay, and one destination, where the relay is equipped with a shared antenna and two radio frequency (RF) chains used for transmission or reception. X-duplex relay can adaptively configure the connection between its RF chains and antenna to operate in either half-duplex (HD) or full-duplex (FD) mode, according to the instantaneous channel conditions. We first derive the distribution of the signal to interference plus noise ratio, based on which we then analyze the outage probability, average symbol error rate (SER), and average sum rate. We also investigate the X-duplex relay with power allocation and derive the lower bound and upper bound of the corresponding outage probability. Both analytical and simulated results show that the X-duplex relay achieves a better performance over pure FD and HD schemes in terms of SER, outage probability and average sum rate, and the performance floor caused by the residual self interference can be eliminated using flexible RF chain configurations. |
| doi_str_mv | 10.1109/TWC.2017.2656887 |
| format | Article |
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X-duplex relay can adaptively configure the connection between its RF chains and antenna to operate in either half-duplex (HD) or full-duplex (FD) mode, according to the instantaneous channel conditions. We first derive the distribution of the signal to interference plus noise ratio, based on which we then analyze the outage probability, average symbol error rate (SER), and average sum rate. We also investigate the X-duplex relay with power allocation and derive the lower bound and upper bound of the corresponding outage probability. Both analytical and simulated results show that the X-duplex relay achieves a better performance over pure FD and HD schemes in terms of SER, outage probability and average sum rate, and the performance floor caused by the residual self interference can be eliminated using flexible RF chain configurations.</abstract><pub>IEEE</pub><doi>10.1109/TWC.2017.2656887</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0001-8644-8241</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | amplify-and-forward relaying Full duplex High definition video Interference mode selection power allocation Radio frequency Relays Resource management Signal to noise ratio Transmitting antennas |
| title | On the Performance of X-Duplex Relaying |
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