Practical joint network-channel coding schemes for slow-fading orthogonal multiple-access multiple-relay channels

2014 ◽  
Author(s):  
Abdulaziz Mohamad ◽  
Raphael Visoz ◽  
Antoine O. Berthet
Keyword(s):  
Channel Coding ◽  
Multiple Access ◽  
Relay Channels ◽  
Coding Schemes ◽  
Slow Fading ◽  
Multiple Relay ◽  
Network Channel

Network Coding Based Multiple-Hop Efficient Transmission Method for Multiple-User Multiple-Relay Networks

2014 ◽  
Vol 998-999 ◽  
pp. 1161-1164
Author(s):  
Gui Mei Chen ◽  
Zhong Gui Ma ◽  
Sha Ban ◽  
Narwani Kamleshd
Keyword(s):  
Network Coding ◽  
Channel Coding ◽  
Relay Networks ◽  
Packet Error Rate ◽  
Linear Network ◽  
Transmission Method ◽  
Linear Network Coding ◽  
Multiple User ◽  
Multiple Relay ◽  
Network Channel

A transmission method , combining both the bit error diversity and joint network-channel coding, was proposed for multiple-user multiple-hop multiple-relay networks. In the poposed method, an interleaver was designed for the bit error diversity and a novel protocol was devised for random linear network coding. The proposed method as well as other two methods—Method I without channel code and protection and Method II only with protection, was analyzed by deriving performance expressions in terms of packet error rate (PER) and throughput. Moreover, simulations further prove the superiority of the proposed method. Numerical results show that the proposed method gains an improvement in PER compared with Method I & II and keeps highest throughput within certain range of SNR.

scholarly journals A Joint Channel-Network Coding Based on Product Codes for the Multiple-Access Relay Channel

2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
Tafzeel ur Rehman Ahsin ◽  
Slimane Ben Slimane
Keyword(s):  
Network Coding ◽  
Channel Coding ◽  
Multiple Access ◽  
Relay Channel ◽  
Decoding Algorithm ◽  
Channel Network ◽  
Product Codes ◽  
Coding Scheme ◽  
Coding Schemes ◽  
Joint Channel

The multiple access relay channel with network coding has the potential to achieve diversity and improve coverage of wireless networks. Its network coding scheme provides an extra redundancy that can be used at the receiver to improve the performance of the cooperating users. This paper shows that the combination of channel coding and network coding, in the multiple access relay channel, can be seen as a product code with rows formed by the code-words of the individual channel codes of the users and columns formed by the network coding code-words. This new representation allows the use of any decoding algorithm of product codes at the receiver to decode the information data of the cooperating users. This decoding process is a complete joint channel-network decoding algorithm as it sees the combination of the two coding schemes as a single coding scheme. It also gives the possibility to use network coding schemes more powerful than conventional XOR-based network coding. The obtained results show that the proposed product-based network coding structure can improve the performance of the multiple-access relay channel without reducing its efficiency and allow a very flexible cooperation between the involved users.

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