Performance Evaluation of Network-Coded Decode-and-Forward Cooperation with Smart Relay Selection

Fazeli, Maryam; Jamshidi, Ali; Keshavarz‐Haddad, Alireza

doi:10.1109/iraniancee.2019.8786679

Cited by 3 publications

(1 citation statement)

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“…They showed that the full diversity gain is only achieved in the scenario where the number of arbitrarily selected relays is greater or equal to

N

(number of sources) with

N

highest signal‐to‐noise ratio (SNR) relays. A new smart decode‐and‐forward (DF) RS scheme was proposed in [12] which considers the source–destination links outage status. Relays use linear NC with coefficients from a generator matrix of maximum distance separable (MDS) code.…”

Section: Introductionmentioning

confidence: 99%

Dynamic optimized cooperation in multi‐source multi‐relay wireless networks with random linear network coding

Benamira

Merazka

Kurt

2021

Electronics Letters

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The authors present a strategy that improves the reliability of data transmission from multiple sources towards a destination D via multiple relays over wireless channels. After the broadcast phase, the destination selects the best cooperative direct link sources with the highest instantaneous signal‐to‐noise ratio γ, then generates and sends the random linear network coding coefficient matrix to the relays. After receiving the random linear network coding–coded symbols (packets) from the relays, D completes the reception and decoding of all source nodes packets. Monte Carlo simulations are conducted with Galois field (GF) (q) symbols (q = 2, 4 and 8) and the results are compared with the scenario of static cooperative direct links. An important decrease of symbol error rate (SER) is achieved. Furthermore, the efficiency of this approach is confirmed for the whole range of possible values of path loss exponent on direct links, that is, all types of environment between source nodes and destination D.

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“…They showed that the full diversity gain is only achieved in the scenario where the number of arbitrarily selected relays is greater or equal to