English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Distributed antenna system (DAS) has been deployed for over a decade. DAS hasadvantages in capacity especially for the cell edge users, in both single-celland multi-cell environments. In this paper, non-orthogonal multiple access(NOMA) is suggested in single-cell DAS to maximize user fairness and sumrate.Two transmission strategies are considered: NOMA with single selectiontransmission and NOMA with blanket transmission. In a two-user scenario, thecenter base station (BS) uses NOMA to serve both users and the remote radiounits (RRUs) serve only the weak user based on the transmission scheme. Thesignals sent from the RRUs are not considered as interference at both usersides. At one side, the signals from the RRUs are used to detect the requireddata and at the other side, the signals are used to perform successiveinterference cancellation (SIC). The max-min performance is studied wheninstantaneous channel gain information (CGI) or channel distributioninformation (CDI) is known at the transmitter. A closed-form expression of theupper bound is derived for the data rate of each user with only CDI. Inaddition, the sum-rate is studied with a minimum rate constraint wheninstantaneous CGI known at the transmitter. The results show that NOMA withblanket transmission gives the best performance compared to other schemes;conventional-NOMA, conventional single selection scheme and joint-transmission(JT) NOMA. It is also shown that with less transmit power, NOMA with singleselection transmission gives better performance than conventional-NOMA.

NOMA in Distributed Antenna System for Max-Min Fairness and Max-Sum-Rate