Rate Analysis of Two-Receiver MISO Broadcast Channel With Finite Rate Feedback: A Rate-Splitting Approach
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hao, Chenxi | - |
dc.contributor.author | Wu, Yueping | - |
dc.contributor.author | Clerckx, Bruno | - |
dc.date.accessioned | 2021-09-04T12:59:29Z | - |
dc.date.available | 2021-09-04T12:59:29Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-09 | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/92571 | - |
dc.description.abstract | To enhance the multiplexing gain of two-receiver Multiple-Input-Single-Output Broadcast Channel with imperfect channel state information at the transmitter (CSIT), a class of Rate-Splitting (RS) approaches has been proposed recently, which divides one receiver's message into a common and a private part, and superposes the common message on top of Zero-Forcing precoded private messages. In this paper, with quantized CSIT, we study the ergodic sum rate of two schemes, namely RS-S and RS-ST, where the common message(s) are transmitted via a space and space-time design, respectively. Firstly, we upper-bound the sum rate loss incurred by each scheme relative to Zero-Forcing Beamforming (ZFBF) with perfect CSIT. Secondly, we show that, to maintain a constant sum rate loss, RS-S scheme enables a feedback overhead reduction over ZFBF with quantized CSIT. Such reduction scales logarithmically with the constant rate loss at high Signal-to-Noise-Ratio (SNR). We also find that, compared to RS-S scheme, RS-ST scheme offers a further feedback overhead reduction that scales with the discrepancy between the feedback overhead employed by the two receivers when there are alternating receiver-specific feedback qualities. Finally, simulation results show that both schemes offer a significant SNR gain over conventional single-user/multiuser mode switching when the feedback overhead is fixed. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | LIMITED FEEDBACK | - |
dc.subject | PERFORMANCE | - |
dc.title | Rate Analysis of Two-Receiver MISO Broadcast Channel With Finite Rate Feedback: A Rate-Splitting Approach | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Clerckx, Bruno | - |
dc.identifier.doi | 10.1109/TCOMM.2015.2453270 | - |
dc.identifier.scopusid | 2-s2.0-84941267226 | - |
dc.identifier.wosid | 000361485200016 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON COMMUNICATIONS, v.63, no.9, pp.3232 - 3246 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.citation.title | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.citation.volume | 63 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 3232 | - |
dc.citation.endPage | 3246 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.subject.keywordPlus | LIMITED FEEDBACK | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | MISO BC | - |
dc.subject.keywordAuthor | finite rate feedback | - |
dc.subject.keywordAuthor | rate splitting | - |
dc.subject.keywordAuthor | ergodic sum rate | - |
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