Compute-and-Forward Network Coding Design over Multi-Source Multi-Relay Channels

03/01/2020
by   Lili Wei, et al.
0

Network coding is a new and promising paradigm for modern communication networks by allowing intermediate nodes to mix messages received from multiple sources. Compute-and-forward strategy is one category of network coding in which a relay will decode and forward a linear combination of source messages according to the observed channel coefficients, based on the algebraic structure of lattice codes. The destination will recover all transmitted messages if enough linear equations are received. In this work, we design in a system level, the compute-and-forward network coding coefficients by Fincke-Pohst based candidate set searching algorithm and network coding system matrix constructing algorithm, such that by those proposed algorithms, the transmission rate of the multi-source multi-relay system is maximized. Numerical results demonstrate the effectiveness of our proposed algorithms.

READ FULL TEXT

page 1

page 2

research
03/01/2020

Integer-Forcing Linear Receiver Design with Slowest Descent Method

Compute-and-forward (CPF) strategy is one category of network coding in ...
research
01/19/2018

Asymptotic Analysis on Spatial Coupling Coding for Two-Way Relay Channels

Compute-and-forward relaying is effective to increase bandwidth efficien...
research
01/09/2018

A New Coding Paradigm for the Primitive Relay Channel

We present a coding paradigm that provides a new achievable rate for the...
research
07/03/2018

Asymptotic Analysis of Spatial Coupling Coding for Compute-and-Forward Relaying

Compute-and-forward (CAF) relaying is effective to increase bandwidth ef...
research
05/10/2020

Compute-and-Forward in Large Relaying Systems: Limitations and Asymptotically Optimal Scheduling

Compute and Forward (CF) is a coding scheme which enables receivers to d...
research
05/05/2018

Ring Compute-and-Forward over Block-Fading Channels

The Compute-and-Forward protocol in quasi-static channels normally emplo...
research
01/09/2023

Compress-and-Forward via Multilevel Coding and Trellis Coded Quantization

Compress-forward (CF) relays can improve communication rates even when t...

Please sign up or login with your details

Forgot password? Click here to reset