Dynamic Time-Frequency Division Duplex
| Autor: | Mohsen Mohammadkhani Razlighi, Petar Popovski, Nikola Zlatanov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
FOS: Computer and information sciences
Computer science Frequency band Computer Science - Information Theory uplink Duplex (telecommunications) 02 engineering and technology Interference (wave propagation) dynamic scheduling Base station Telecommunications link 0202 electrical engineering electronic engineering information engineering Electronic engineering resource management Electrical and Electronic Engineering throughput dynamic time-division duplex (D-TDD) signal to noise ratio Applied Mathematics Information Theory (cs.IT) 020206 networking & telecommunications downlink Computer Science Applications Time–frequency analysis fifth generation (5G) mobile communication Diversity gain Channel state information base stations (BSs) Interference Communication channel |
| Zdroj: | Mohammadkhani Razlighi, M, Zlatanov, N & Popovski, P 2020, ' Dynamic Time-Frequency Division Duplex ', I E E E Transactions on Wireless Communications, vol. 19, no. 5, 8985535, pp. 3118-3132 . https://doi.org/10.1109/TWC.2020.2970701 |
| DOI: | 10.48550/arxiv.1909.03058 |
| Popis: | In this paper, we introduce dynamic time-frequency-division duplex (D-TFDD), which is a novel duplexing scheme that combines time-division duplex (TDD) and frequency-division duplex (FDD). In D-TFDD, a user receives from the base station (BS) on the downlink in one frequency band and transmits to the BS on the uplink in another frequency band, as in FDD. Next, the user shares its uplink transmission (downlink reception) on the corresponding frequency band with the uplink transmission or the downlink reception of another user in a D-TDD fashion. Hence, in a given frequency band, the BS communicates with user 1 (U1) and user 2 (U2) in a D-TDD fashion. The proposed D-TFDD scheme does not require inter-cell interference (ICI) knowledge and only requires channel state information (CSI) of the local BS-U1 and BS-U2 channels. Thereby, it is practical for implementation. The proposed D-TFDD scheme increases the throughput region between the BS and the two users in a given frequency band, and significantly decreases the outage probabilities on the corresponding BS-U1 and BS-U2 channels. Most importantly, the proposed D-TFDD scheme doubles the diversity gain on both the corresponding BS-U1 and the BS-U2 channels compared to the diversity gain of existing duplexing schemes, which results in very large performance gains. Comment: Content presented in this article is subjected to Australian Provisional Patent Application 2019903224, filing date 2/Sep/2019, see http://pericles.ipaustralia.gov.au/ols/auspat/applicationDetails.do?applicationNo=2019903224. arXiv admin note: text overlap with arXiv:1701.05275 |
| Databáze: | OpenAIRE |
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