Search Results - "Sah, Abhay Kumar"

Energy Efficient Joint Beamforming Design for Hardware-Impaired STAR-RIS Assisted CF-mMIMO Systems by Choudhury, Debajit, Sah, Abhay Kumar

“…The alliance of reconfigurable intelligent surfaces (RISs) and cell-free massive multiple-input multiple-output (CF-mMIMO) is a promising architecture for the…”
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An Unconstrained Likelihood Ascent Based Detection Algorithm for Large MIMO Systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Neighborhood search algorithms have been proposed for detection in large multiple-input multiple-output systems. They iteratively search for the best vector in…”
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Beam Alignment for mmWave Using Non-Stationary Bandits by Gupta, Ruchir, Lakshmanan, K., Sah, Abhay Kumar

“…A wireless system communicating in the millimeter-wave (mmWave) band suffers from severe propagation loss and thus, employs a highly directional beam to…”
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An Interference Aware User-group Pilot Assignment for Cell-free Massive MIMO Systems by Singh, Santosh Kumar, Chakravarthy, Yallammagari, Sah, Abhay Kumar

“…Cell-free (CF) massive multiple-input multiple-output (MIMO) system is introduced to fulfill the requirement of higher data rates by serving a user through…”
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Multi-User Grouping for NOMA Enabled VLC System by O K, Hari Shanker, Sah, Abhay Kumar

“…Driven by the rapid growth of wireless devices and their need for innovative technologies to facilitate a Gigabit-per-second (Gbps) connectivity, visible light…”
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Sequential and Global Likelihood Ascent Search-Based Detection in Large MIMO Systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Neighborhood search algorithms have been proposed for low complexity detection in large/massive multipleinput multiple-output systems. They iteratively search…”
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Stopping Rule-Based Iterative Tree Search for Low-Complexity Detection in MIMO Systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Breadth first tree search (BFTS) algorithms are known to provide a close to maximum likelihood (quasi-ML) solution at a low-complexity if the received sequence…”
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An MMP-Based Approach for Detection in Large MIMO Systems Using Sphere Decoding by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Sphere decoders (SDs) are known to provide near maximum-likelihood performance in multiple-input multiple-output systems. But their ability to provide good…”
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Quasi-Orthogonal Combining for Reducing RF Chains in Massive MIMO Systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…We address the issue of reducing the number of radio frequency (RF) chains in large/massive multiple input multiple output systems while retaining their…”
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Bit-Level Reduced Neighborhood Search for Low-Complexity Detection in Large MIMO Systems by Mann, Pushpender, Sah, Abhay Kumar, Budhiraja, Rohit, Chaturvedi, A. K.

“…Neighborhood search algorithms (NSAs) reduce the detection complexity in a multiple-input multiple-output (MIMO) system equipped with a large number of…”
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Likelihood-Based Tree Search for Low Complexity Detection in Large MIMO Systems by Agarwal, Saksham, Sah, Abhay Kumar, Chaturvedi, A. K.

“…A recently reported result on large/massive multiple-input multiple-output (MIMO) detection shows the utility of the branch and bound (BB)-based tree search…”
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A Framework for Exploiting Hard and Soft LLRs for Low Complexity Decoding in VRAN Systems by Vankayala, Satya Kumar, Gundeti, RaviTeja, Shenoy, K Gautam, Sah, Abhay Kumar, Kumar, Swaraj, Yoon, Seungil

“…Owing to improved coverage and flexibility, the radio access network (RAN) functionalities are being virtualized in a sense that the base station will merely…”
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Beyond fixed neighborhood search in the likelihood ascent algorithm for MIMO systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Neighborhood search algorithms have been proposed for detection in large/massive multiple-input multiple-output (MIMO) systems. They iteratively search for the…”
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Improving the reliability of receivers for 5G networks by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Multiple-input multiple-output (MIMO) systems with a large number of antennas are imperative for future wireless networks. The reliability of receivers in such…”
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An Untrained DNN Denoiser for Uplink Channel Estimation in Multicell Massive MIMO System by Bansal, Yatharth, Sah, Abhay Kumar

“…Massive multiple-input and multiple-output (MIMO) systems are an integral part of 5G cellular networks. They employ a large antenna array at the base station…”
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Analysis of downlink NOMA in full duplex-half duplex mixed cell PPP system with interference by Parthasarathy, Sudharsan, Sah, Abhay Kumar, Vankayala, Satya Kumar

“…In this paper we derive the outage probability and average spectral efficiency of downlink users in a mixed cell full duplex (FD)-half duplex (HD) non…”
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Generalized Block-Based Spatial Modulation and Space Shift Keying by Gadhai, Shyam, Sah, Abhay Kumar, Budhiraja, Rohit, Chaturvedi, Ajit Kumar

“…Spatial modulation (SM) uses the spatial dimensions (antenna indices) to transmit information along with the conventional modulation symbols. The SM scheme…”
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Improved Sparsity Behaviour and Error Localization in Detectors for Large MIMO Systems by Abhishek, Sah, Abhay Kumar, Chaturvedi, A. K.

“…Sparsity based techniques have been found to be promising for detection in large/massive multiple-input multiple-output (MIMO) systems. They initialize with an…”
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Accelerated Detection Schemes for PSS in 5G-NR by Vankayala, Satya Kumar, Akhtar, Javed, Ashok Krishnan, K. S., Sah, Abhay Kumar

“…Future generation networks are expected to support high data rate with very low latency so as to enable key services such as massive machine type…”
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Reduced Neighborhood Search Algorithms for Low Complexity Detection in MIMO Systems by Sah, Abhay Kumar, Chaturvedi, A. K.

“…Neighborhood search algorithms such as likelihood ascent search (LAS) and reactive tabu search (RTS) have been proposed for low complexity detection in…”
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