Jan 17, 2024 · The first three chapters cover the fundamentals of wireless channels, and the main benefits of using multiple antennas are identified: beamforming, diversity, ...

Oct 1, 2023 · Diversity gain refers to the improvement in the communication system's performance achieved by using multiple antennas at both the transmitter and the receiver.

Apr 4, 2024 · Signal space diversity (SSD) along with coordinate interleaving is proposed in this work to be integrated with OFDM‐SPM to help improve the overall BER ...

Aug 11, 2023 · MIMO provides high data rate communications by exploiting spatial diversity present in the channels between multiple transmit and receive antenna pairs.

Feb 29, 2024 · Subse- quently, we study SDMA and MIMO-NOMA as well as their variants in traditional far-field communications. (FFC) using planar-wave propagation models.

Sep 6, 2023 · Abstract: Sparse code multiple access (SCMA) is a promising technique for the enabling of massive connectivity in future machine-type communication networks ...

Mar 1, 2024 · 1. Space Diversity: Replica of same signal is transmitted through different antenna. · 2. Time Diversity: Time diversity is obtained by re-transmitting the same ...

Apr 9, 2024 · In this paper, the secrecy performance for a downlink cooperative non-orthogonal multiple access (NOMA) communication system is studied under two cases. In the ...

Apr 8, 2024 · It is thus crucial to study Next Generation Multiple Access (NGMA) to effectively increase network capacity, enlarge the connectivity of massive IoT devices ...

Oct 25, 2023 · To this goal, fluid antenna system (FAS) has emerged as a new way to obtain spatial diversity using reconfigurable position-switchable anten- nas. Considering ...