Optimal coefficient selection in Compute and Forward relaying using improved Schnorr–Euchner search algorithm

Jeyalakshmi, V.; Sankar, Tamil Selvi

doi:10.1016/j.phycom.2023.102106

Cited by 5 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[25] effectively reduces the overall complexity and improves the efficiency of [24] by further optimizing the vectors. In [26], an iterative algorithm for finding the optimal coefficient vector in the Gaussian integer domain using an improved Schnorr-Euchner search strategy is proposed.…”

Section: Related Workmentioning

confidence: 99%

A Novel Compute-and-Forward Relaying Method for Multi-Antenna Wireless Relay Networks

Yang,

Yan,

et al. 2023

Entropy

View full text Add to dashboard Cite

Compute-and-Forward (CoF) is an innovative physical layer network coding strategy, designed to enable receivers in wireless communications to effectively utilize interference. The key idea of CoF is to implement integer combinations based on the codewords from multiple transmitters, rather than decoding individual source codewords. Although CoF is widely used in wireless relay networks, there are still some problems to be solved, such as rank failure, single antenna reception, and the shortest vector problem. In this paper, we introduce a successive extended CoF (SECoF) as a pioneering solution tailored for multi-source, multi-relay, and multi-antenna wireless relay networks. First, we analyze the traditional CoF, and design a SECoF method combining the concepts of matrix projection and successive interference cancellation, which overcomes the problem of CoF rate tending to zero and rank failure and improves the network performance. Secondly, we obtain an approximate solution to the integer-value coefficient vectors by using the LLL lattice-based resolution algorithm. In addition, we deduce the corresponding concise formulas of SECoF. Simulation results show that the SECoF has strong robustness and the approaches outperform the state-of-the-art methods in terms of computation rate, rank failure probability, and outage probability.

show abstract

Section: Related Workmentioning

confidence: 99%

A Novel Compute-and-Forward Relaying Method for Multi-Antenna Wireless Relay Networks

Yang,

Yan,

et al. 2023

Entropy

View full text Add to dashboard Cite

show abstract

“…The error rate performance in Additive White Gaussian Noise (AWGN) and fading wireless atmosphere for Decode and Forward (DF) and Compute and Forward (CF) relaying techniques are derived analytically and verified through MATLAB simulation. A coefficient selection algorithm using an improved Schnorr -Euchner search strategy for decoding linear equations of messages at the intermediate node in PNC for CF relaying is proposed in [16], and the efficiency of the proposed algorithm is compared with other prevailing algorithms of optimal coefficient selection. The BER performance comparison of communication systems for network coding with relay selection and network coding without relay selection is derived and validated through simulation in [17].…”

Section: Introductionmentioning

confidence: 99%

Channel Precoding for Compute and Forward Relaying in Two Way Relay Network Model

Vijayarajan,

Selvi

2024

Comput. Networks Commun.

View full text Add to dashboard Cite

Physical layer Network Coding (PNC) is a promising strategy to improve the spectral efficiency in a relay-based wireless transmission. This paper employs lattice-based channel coding at the source nodes for better performance during Multiple Access Channel (MAC) phase transmission. The achievable transmission rate in various PNC relaying such as Decode and Forward (DF), Amplify and Forward (AF), and Compute and Forward (CF) for the Two Way Relay Network model (TWRN) is derived and simulated through MATLAB software and analyzed. The analysis shows that the rate performance of CF relaying outperforms other relaying techniques in the Additive White Gaussian Noise (AWGN) channel, but it degrades for the Rayleigh fading channel. To mitigate the fading effects, channel aware precoding technique is employed at source nodes, Bit Error Rate (BER) and Symbol Error Rate (SER) performance are analyzed for CF relaying, and Monte Carlo simulations are used to demonstrate the theoretical results. Channel precoding performance of CF relaying is compared with DF relaying.

show abstract

Design of Wearable Textile Antenna for Wireless Body Area Network

Jeyalakshmi,

Bharathi,

Vaishnavi

2024

2024 1st International Conference on Cognitive, Green and Ubiquitous Computing (IC-CGU)

View full text Add to dashboard Cite

Optimal coefficient selection in Compute and Forward relaying using improved Schnorr–Euchner search algorithm

Cited by 5 publications

References 15 publications

A Novel Compute-and-Forward Relaying Method for Multi-Antenna Wireless Relay Networks

A Novel Compute-and-Forward Relaying Method for Multi-Antenna Wireless Relay Networks

Channel Precoding for Compute and Forward Relaying in Two Way Relay Network Model

Design of Wearable Textile Antenna for Wireless Body Area Network

Contact Info

Product

Resources

About