Analysis of transmit antenna selection based selective decode forward cooperative communication protocol

Sachan, Vikash; Kumar, Indrajeet; Shankar, Ravi; Mishra, Ritesh Kumar

doi:10.3166/ts.35.47-60

Cited by 13 publications

(16 citation statements)

References 10 publications

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“…So, an orthogonal STBC codeword for complete STBC communication can be agreed by a matrix with dimensions . S NT  It was before it was argued that orthogonal STBC codewords can be managed in different aerials and then processed data can be combined together to get an effective data, which is similar to the maximum ratio combiner (MRC) [35]. The orthogonal STBC is designed such that the vectors representing any pair of columns taken from the source-to-th r relay coding matrix sr H is orthogonal, i.e., the STBC converts the vector channel in scalar channel.…”

Section: End-to-end Symbol Error Analysismentioning

confidence: 99%

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

Shankar¹,

Bhardwaj²,

Mishra³

2020

JTIT

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In this work, we examine the performance of selective-decode and forward (S-DF) relay systems over κ-µ fading channel condition. We discuss about the probability density function (PDF), system model, and cumulative distribution function (CDF) of κ-µ distributed envelope and signal to noise ratio (SNR) and the techniques to generate samples that follow κ-µ distribution. Specifically, we consider the case where the source-torelay (S→R), relay-to-destination (R→D) and source-to-destination (S→D) link is subject to the independent and identically distributed (i.i.d.) κ-µ fading. From the simulation results, the enhancement in the symbol error rate (SER) with a stronger line of sight (LOS) component is observed. This shows that S-DF relaying systems can perform well even in the non-fading or LOS conditions. Monte Carlo simulations are conducted for various values of fading parameters and the outcomes closely match with theoretical outcomes which validate the derivations.Keywords: multiple input multiple output, selective decode and forward, symbol error rate, channel fading, relaying protocol, signal to noise ratio, channel state information. IntroductionThe 5 th generation (5G) wireless communication systems will require a major paradigm shift to meet the increasing demand for reliable connectivity through high data rates, low latency, better energy efficiency, and Femto cell-based relays [1][2][3]. These relay nodes are equipped with energy harvesting (EH) techniques in the relaying network to improve energy efficiency. Cooperative communication is the natural choice for 5G wireless communication system, and it is adopted in 3 rd generation partnership project (3GPP), universal mobile telecommunications service (UMTS), long term evolution (LTE)-Advanced and IEEE 802.11 because the nodes in the cooperative communication network can share their resources with each other during the signal transmission [4][5][6]. Also, it is incorporated into numerous 5G wireless applications, such as machine-to-machine (M2M), device-to-device (D2D), cognitive radio (CR), high speed terrestrial network (HSTN) & free space optical (FSO) communication [7][8][9][10].Relay-assisted cooperation is the first step towards the 5G system that is expected to deliver up to 20Gbps in downlink (D/L) and 10Gbps in uplink (U/L) will be benchmarked by network operators during initial rollouts in the next few years [11][12]. The relay infrastructure does not need wired network connection, thus offering a reduction in the backhaul costs of the operator. Through the additional cooperative diversity inherent in such wireless systems, cooperative wireless communication significantly improves end-to-end reliability. If the direct source-to-destination (SD) channel is in a deep fade, the main advantage of the cooperative communication is that the destination node can still receive the source signal via the relay node.According to the signal receiving and transmitting, there are two basic methods of relaying: analog & digital. Analog relaying is also called no...

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Section: End-to-end Symbol Error Analysismentioning

confidence: 99%

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

Shankar¹,

Bhardwaj²,

Mishra³

2020

JTIT

Self Cite

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“…Relay assisted cooperation is the first step towards the 5th generation (5G) wireless system, which is expected to offer up to 20Gbps in the downlink (D/L) and 10Gbps in uplink (U/L) wireless communication [2]. Numerous relaying schemes have been proposed in the existing literatures such as amplifyand-forward (AF) [3][4][5], decode-and-forward (DF) [6] and selective decode and forward (S-DF) [7][8][9][10][11][12]. However, the works [3][4][5][6] suffer from several significant drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Outage Probability Analysis of MIMO-OSTBC Relaying Network Over Nakagami-m Fading Channel Conditions

Shankar¹,

Kumar²,

Mishra³

2019

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The objective of this study is to examine the outage probability (OP) performance of the multiple-input multiple-output (MIMO) cooperative communication system over Nakagamim fading channel conditions. Source node transmits orthogonal space time block code (OSTBC) codeword to the relay & destination node and maximal ratio combiner (MRC) is used for the decoding purpose at the destination node. A mathematical framework is developed for the analysis of diversity order (DO) of the system. The closed form expression of OP is derived in terms of confluent hypergeometric function of two variables considering perfect channel state information (CSI). The Simulation results verified the accuracy of the derived analytical results. Furthermore, the results shown that the distances between the nodes significantly affect the OP performance.

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“…The object characteristics are described by textural information. LBP has been extended by various researchers for increasing its performance and achieving specific requirements such as Rotation In-variant LBP [17][18] and Elongated Local Binary Patterns (ELBP) [19]. Mu Y et al recommended another types of LBP such as Semantic-LBP and Fourier-LBP which is employed in human recognition and detection [7].…”

Section: Introductionmentioning

confidence: 99%

A Robust mRMR Based Pedestrian Detection Approach Using Shape Descriptor

Kumar¹,

Mishra²

2019

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Pedestrian detection is a fundamental problem in various computer vision applications and is addressed by complex solutions involving complex feature extractor and classification techniques. In this paper, feature selector is used along with Histogram of Significant Gradients (HSG) descriptor and linear SVM classifier to enhance the detection accuracy and reduce the processing time. A feature selector organizes the extracted features in decreasing order of their significance. A comparative study has been done employing different classifiers and feature selectors and a system is proposed with better detection capability. The proposed scheme is found to have a 50 % reduction in feature size, 67 % reduction in processing time and 3.93 % improvement in accuracy.

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Analysis of transmit antenna selection based selective decode forward cooperative communication protocol

Cited by 13 publications

References 10 publications

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

Analysis of Selective-Decode and Forward Relaying Protocol over k-µ Fading Channel Distribution

Outage Probability Analysis of MIMO-OSTBC Relaying Network Over Nakagami-m Fading Channel Conditions

A Robust mRMR Based Pedestrian Detection Approach Using Shape Descriptor

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