Downlink macro-diversity precoding-aided spatial modulation

by   Manar Mohaisen, et al.

In this paper, a downlink macro-diversity precodingaided spatial modulation (MD-PSM) scheme is proposed, in which two base stations (BSs) communicate simultaneously with a single mobile station (MS). As such, the proposed scheme achieved twice the spectral efficiency of the conventional PSM scheme. To render the demodulation possible, the two signal constellation sets used at the two BSs should be disjoint. Also, since the two BSs use the same spatial dimension, i.e., indices of receive antennas, the Minkowski sum of the two constellation sets should include unrepeated symbols. This is achieved through rotating the constellation set used by the second BS, where the error rate is also minimized. After obtaining the optimal rotation angles for several scenarios, a reduced complexity maximum-likelihood receiver is introduced. For an equal number of transmit and receive antennas of 4 and at a target BER of 10^-4, the simulation results show that the proposed MD-PSM scheme outperforms the conventional PSM by about 17.3 dB and 12.4 dB, while achieving the same and double the spectral efficiency, respectively. Also, due to the distributed nature of MDPSM, it is shown that the diversity order of the novel MD-PSM scheme is twice that of the conventional PSM.


page 1

page 2

page 3

page 4


Q-ary Multi-Mode OFDM with Index Modulation

In this paper, we propose a novel orthogonal frequency division multiple...

RIS-Assisted Receive Quadrature Spatial Modulation with Low-Complexity Greedy Detection

In this paper, we propose a novel reconfigurable intelligent surface (RI...

Uplink and Downlink Transceiver Design for OFDM with Index Modulation in Multi-user Networks

A new modulation scheme called OFDM with index modulation (OFDM-IM) is i...

Enhancing Diversity of OFDM with Joint Spread Spectrum and Subcarrier Index Modulations

This paper proposes a novel spread spectrum and sub-carrier index modula...

Area Spectral Efficiency and SINR Scaling Laws in Multi-Antenna Cellular Networks

We study the scaling laws of the signal-to-interference-plus-noise ratio...

Towards Higher Spectral Efficiency: Rate-2 Full-Diversity Complex Space-Time Block Codes

The upcoming 5G networks demand high-speed and high spectral-efficiency ...

A Universal Framework of Superimposed RIS-Phase Modulation for MISO Communication

To fully exploit the additional dimension brought by reconfigurable inte...

Please sign up or login with your details

Forgot password? Click here to reset