Performance Analysis and Antenna Selection for Space Time Line Code

Abstract

In this paper, we investigate the recently developed space time line code (STLC) scheme, which utilizes the channel state information (CSI) for encoding at the transmiter to achieve full spatial diversity gain. The theoretical analysis of the bit error rate (BER) performance for STLC is first evaluated. Moreover, aiming at alleviating the cost of radio frequency (RF) chains, antenna selection at both the transmitter and receiver sides is developed by minimizing the derived instantaneous BER. Furthermore, in the context of a flat Rayleigh fading channel, we derive an upper bound for quantifying the BER performance of STLC with both transmit and receive antenna selection. Finally, simulation results validate the accuracy of the above theoretical analysis results and show the performance improvement of the developed antenna selection schemes. INDEX TERMS Space time line code (STLC), multiple input multiple output (MIMO), antenna selection (AS), BER.

Discrete Phase Shifts of Intelligent Reflecting Surface Systems Considering Network Overhead

“…For example, multiuser/multicast/multi-stream multiplexing systems [ 62 , 63 ], cooperative communication systems [ 64 ], OFDM systems [ 65 ], mobile communication systems [ 66 , 67 ], secure wireless communication systems [ 68 ], and over-the-air computation systems [ 69 ]. Moreover, the statistical properties of SNR and signal-to-interference-plus-noise ratio and the performance of STLC, namely bit-error-rate and achievable rate, were analyzed in [ 70 , 71 ]). According to [ 61 ], the received SNR of the MRT and STLC can be generalized as follows: where P and are the power of the transmit signal and additive white Gaussian noise, respectively; C is a code rate depending on the transmission scheme and antenna configurations [ 61 ].…”

Pilot‐aided 1 × 2 and 2 × 2 space‐time line code systems with transmit antenna selection

“…In order to improve error performance and maintain low complexity detection, STLC systems with TAS have been proposed in previous works. 6,14,15 In this paper, we also apply TAS to improve the error performance of the pilot-aided STLC systems.…”

“…The error performance of STLC is analysed in Pang et al 14 for the effective channel gain known at the receiver. The error performance bound is also derived for the STLC system with both transmit and receive antenna selection in Pang et al 14 Based on the moment‐generating function (MGF) method, the approximated expression of error performance for the STLC with TAS is derived in Lim and Joung 15 .…”

“…The error performance of STLC is analysed in Pang et al 14 for the effective channel gain known at the receiver. The error performance bound is also derived for the STLC system with both transmit and receive antenna selection in Pang et al 14 Based on the moment‐generating function (MGF) method, the approximated expression of error performance for the STLC with TAS is derived in Lim and Joung 15 . The error performance of the STLC systems without TAS in the correlated fading channel is analyzed in Pang et al 16 In this paper, based on the equivalent received signal model, we use a more direct and simpler approach to derive the average symbol error probability (ASEP) of the coherent STLC systems with TAS, which represents the lower bound of the pilot‐aided STLC systems with TAS.…”

Over-the-Air Computation Strategy Using Space–Time Line Code for Data Collection by Multiple Unmanned Aerial Vehicles

“…The STLC transmitter encodes the information symbols by using channel state information (CSI) and transmits them through a single antenna (not necessarily multiple antennas), and a two-antenna STLC receiver at the dUAV can achieve a full spatial-diversity gain by simply combining the received signals without the full CSI [31]. As it exploits the simplicity and full spatial diversity gain of the STLC, the STLC scheme has been extensively applied in various wireless communication systems, such as multiuser or multi-stream multiplexing systems [29], [32]- [36], cooperative communication systems [37]- [39], orthogonal frequency-division multiplexing systems [40], vehicular and UAV systems [14], [41], security-aware systems [42], [43], and antenna selection systems [44]- [46]. Here, the CSI is assumed to be available at the transmitter under the assumption that the uplink and downlink channels are symmetric in a time-division duplex (TDD) mode.…”