Ergodic UL/DL capacity analysis of co-located and distributed antenna configuration for high speed train with massive MIMO system

Bhatt, Maharshi K.; Sedani, Bhavin S.; Parmar, K. R.; Shah, Mansi P.

doi:10.1109/icici.2017.8365393

Cited by 1 publication

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“…The HST channel model that represents only path losses was used in [14] to compute the capacity. Other studies [12], [14], [15] investigated the capacity using the HST channel model which was assumed to be the Rice channel. The large-scale fading of this channel model represents the path loss factor and the shadow fading coefficient obeying the log normal distribution.…”

Section: Introductionmentioning

confidence: 99%

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International Journal of Electronics and Telecommunications

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Hải

2021

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The high-speed of train (HST) in combination with the high carrier frequency of HST systems leads to the severe inter carrier interference (ICI) in the HST orthogonal frequency division multiplexing (HST-OFDM) systems. To avoid the complexity in OFDM receiver design for ICI eliminations, the OFDM system parameters such as symbol duration, signal bandwidth, and the number of subcarriers should be chosen appropriately. This paper aims to propose a process of HST-OFDM system performance investigation to determine these parameters in order to enhance spectral efficiency and meet a given quality-of-service (QoS) level. The signal-to-interferenceplus-noise ratio (SINR) has been used as a figure of merit to analyze the system performance instead of signal-to-noise ratio (SNR) as most of recent research studies. Firstly, using the nonstationary geometry-based stochastic HST channel model, the SINR of each subcarrier has been derived for different speeds of the train, signal bandwidths, and number of subcarriers. Consequently, the system capacity has been formulated as the sum of all the single channel capacity from each sub-carrier. The constraints on designing HST-OFDM system parameters have been thoughtfully analyzed using the obtained expressions of SINR and capacity. Finally, by analyzing the numerical results, the system parameters can be found for the design of HST-OFDM systems under different speeds of train. The proposed process can be used to provide hints to predict performance of HST communication systems before doing further high cost implementations as hardware designs.

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Section: Introductionmentioning

confidence: 99%

“…Finally, the conclusions are drawn in Section V. the index of the active transmit antenna and the modulation symbol with the estimated channel matrix H est . The optimum maximum likelihood (ML) detector proposed in [15] is employed to estimate the transmit antenna index p and the transmitted data symbol ŝ as…”

Section: Introductionmentioning

confidence: 99%

International Journal of Electronics and Telecommunications

Hương

Hải

2021

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Ergodic UL/DL capacity analysis of co-located and distributed antenna configuration for high speed train with massive MIMO system

Cited by 1 publication

References 5 publications

International Journal of Electronics and Telecommunications

International Journal of Electronics and Telecommunications

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