A novel Alamouti-coded decode-and-forward protocol for cooperative communications

Swasdio, Wanakorn; Pirak, Chaiyod

doi:10.1109/tencon.2010.5686616

Cited by 6 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We derive a SER upper bound for the proposed system with the M-PSK modulation. When the M-PSK modulation is used in the system, with the instantaneous SNR (γ) in (23) and (24), the conditional SER, where the channel coefficients H sd , H sr , and H rd are the channel impulse responses of the source-to-destination link, source-torelay link, and the relay-to-destination link, respectively, can be written as [14].…”

Section: Probability Of Error Analysismentioning

confidence: 99%

Alamouti-coded decode-and-forward protocol with optimum relay selection and power allocation for cooperative communications

Swasdio

Pirak

Jitapunkul

et al. 2014

J Wireless Com Network

View full text Add to dashboard Cite

In this paper, an Alamouti-coded decode-and-forward protocol with optimum relay selection for three-user one destination cooperative communications is investigated. Particularly, we design the new protocol that allows the source node retransmitting the signal to the destination node at the same time as the relay node forwarding the received signal to the destination node with an Alamouti coding scheme. We exploit the cooperative maximum ratio combining technique (C-MRC) at the destination for combining a multiple copy of received signals. Therefore, the proposed scheme achieves the maximum diversity gain and lower probability of error in comparison with the existing decode and forward protocol. We also analyze a symbol error rate (SER) upper bound of the single relay system, and exploit a result of this analysis to select the optimum relay in a multiple-relay cooperation scheme based on the minimum SER selection strategy. Moreover, the optimum power allocation for the proposed protocol is derived, and it is able to provide the optimum transmission power strategy to the source and the relay nodes in order to achieve the minimum probability of error. In the performance analysis, the theoretical error probability is studied and compared with the simulation results. Simulation results indicate that the proposed protocol significantly outperforms the existing protocols, and the theoretical error probability curve is relatively close to the simulated SER curve.

show abstract

Section: Probability Of Error Analysismentioning

confidence: 99%

Alamouti-coded decode-and-forward protocol with optimum relay selection and power allocation for cooperative communications

Swasdio

Pirak

Jitapunkul

et al. 2014

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…In contrast to AF Relaying Protocol, DF Relaying Protocol decodes the RS information received from the BS and then retransmits the re-encoded information to the MS. The signal received from the BS and RS at the MS will be combined using a Maximal Combining Ratio (MRC) technique [10]. Unlike AF Relaying Protocol, the noise is rectified and hence, the DF Relaying Protocol usually shows a better transmission performance than the AF Relaying Protocol.…”

Section: Introductionmentioning

confidence: 99%

Modified Cooperative Subchannel Allocation Algorithms and PSO Based Power Allocation for an Alamouti Decode and Forward Relaying Protocol in Multiuser OFDMA Systems

Ali¹,

Sampath²

2016

View full text Add to dashboard Cite

Efficient Decoding Scheme for Cooperative Communication Using Hierarchical Modulation in the Mobile Communication Systems

Choi

Song

2015

Wireless Pers Commun

View full text Add to dashboard Cite

A novel Alamouti-coded decode-and-forward protocol for cooperative communications

Cited by 6 publications

References 9 publications

Alamouti-coded decode-and-forward protocol with optimum relay selection and power allocation for cooperative communications

Alamouti-coded decode-and-forward protocol with optimum relay selection and power allocation for cooperative communications

Modified Cooperative Subchannel Allocation Algorithms and PSO Based Power Allocation for an Alamouti Decode and Forward Relaying Protocol in Multiuser OFDMA Systems

Efficient Decoding Scheme for Cooperative Communication Using Hierarchical Modulation in the Mobile Communication Systems

Contact Info

Product

Resources

About