Impact of Transmission Synchronization Error and Cooperative Reception Techniques on the Performance of Cooperative MIMO Systems

Nguyen, Tuan-Duc; Berder, Olivier; Sentieys, Olivier

doi:10.1109/icc.2008.863

Cited by 32 publications

(21 citation statements)

References 11 publications

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“…Hence, PEP II,j→k m is obtained by taking the average over K equiprobable SCPs, as shown in (23). By combining (20) and (23), the PEP of decoding the SCP is given by:…”

Section: A Effect Of Timing Offset On the Detection Of Spatial Constmentioning

confidence: 99%

“…For instance, in cooperative MIMO systems in which the antennas are physically separated, timing synchronisation is a major issue, and this has been investigated in literature including [23] and [24]. As established in previous reports on SM, the performance of SM technique is highly dependent on the dissimilarity of the channel gains of the transmit-receive paths [1], [2], [25].…”

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confidence: 99%

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Effect of Synchronization Error on Optical Spatial Modulation

Olanrewaju

Popoola

2017

IEEE Trans. Commun.

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Abstract-This work examines the effect of synchronisation error on the performance of spatial modulation (SM) technique in optical wireless communication (OWC) systems. SM exploits the deployment of multiple transmitters by encoding user information on their spatial domain. In most works related to SM, a perfect synchronisation among these multiple transmitters is assumed. However, synchronisation error can result from multipath propagation in OWC channel, and clock jitter and variation in propagation delay of each transmitter. Such error in synchronisation degrades system performance and hence the need to investigate its effect. Using union bound technique, and defining synchronisation errors as timing offsets in the received signals, we derive the symbol error rate for space shift keying (SSK), generalised SSK (GSSK), SM and generalised SM (GSM) schemes, and we validate our analysis with tightly-matched simulation results. Results show degradation in performance increases with synchronisation error. While SSK is tolerant for a small range of synchronisation error, GSSK, SM and GSM are significantly impaired. Our results also demonstrate the dependence of SM on channel gain values. We observe that the lower the channel gain of the transmitter in which synchronisation error occurs, the lesser the impact of the synchronisation error on the system performance.

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“…Hence, PEP II,j→k m is obtained by taking the average over K equiprobable SCPs, as shown in (23). By combining (20) and (23), the PEP of decoding the SCP is given by:…”

Section: A Effect Of Timing Offset On the Detection Of Spatial Constmentioning

confidence: 99%

mentioning

confidence: 99%

Effect of Synchronization Error on Optical Spatial Modulation

Olanrewaju

Popoola

2017

IEEE Trans. Commun.

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“…Here, we face with the transmission synchronization errors of the relaydestination link. Using the same synchronization error model as [9] in which the interference inter-symbol (ISI) is just created by the four nearest neighbor symbols, the effect of transmission synchronization error on full DSTC cooperative relaying system and DSTC cooperative relaying system at the case of r = 0.5 and rr = 0.1 is considered in Fig. 6.…”

Section: Effect Of Transmission Synchronization Errormentioning

confidence: 99%

“…6. In this simulation, the synchronization error δ k , [9], is considered to have a uniform distribution in [−∆T /2, ∆T /2] with ∆T the error synchronization range. We see that the performance of two models is not much degraded until ∆T = 0.5.…”

Section: Effect Of Transmission Synchronization Errormentioning

confidence: 99%

Non-regenerative full distributed space-time codes in cooperative relaying networks

Tran

Berder

Sentieys

2011

2011 IEEE Wireless Communications and Networking Conference

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Abstract-Distributed space-time codes (DSTC) are often used in cooperative relaying networks whose relays can support a single antenna due to the limited physical size. In this paper, full DSTC protocol in which there is a data exchange between relays before forwarding signals to destination is proposed to improve the performance of a cooperative relaying system. A lower bound for the average symbol error probability (ASEP) of full DSTC cooperative relaying system in a Rayleigh fading environment is provided. In the case when the Signal to Noise Ratio (SNR) of the relay-relay link is much greater than that of the source-relay link, the upper bound on ASEP of this system is also derived. From the simulations, we show that the average SNR gain of full DSTC system over DSTC system is 3.8dB and the maximum SNR gain is 5dB when the relay-relay distance is small and the relays are in the middle of the source and the destination. The effect of the distance between the relays shows that the performance does not degrade so much as the distance between relays is lower than a half of the source-destination distance. Moreover, we also show that when the error synchronization range is lower than 0.5, the impact of the transmission synchronization error of the relay-destination link on the performance is not considerable.

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“…In our work, we consider a "Cooperative MISO" where all nodes have direct access to the FC. In (Nguyen et al 2008), Nguyen et al propose two techniques of cooperative reception to enhance energy efficiency. The whole space-time combination at the destination node is carried out by the first technique, while the second one independently performs signal processing and space-time combination at each cooperative node.…”

Section: Introductionmentioning

confidence: 99%

Increasing network lifetime in an energy-constrained wireless sensor network

Abdellaoui¹,

Debbah²,

Fakhri³

et al. 2013

IJSNET

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Energy in Wireless Sensor Networks is a scarce resource, therefore an energyefficient management is required to increase the network lifetime. In this paper, we study the problem of optimal power allocation, taking into account the estimation of total signal-to-noise ratio (SNR) at the Fusion Center (FC). We consider that nodes transmit their data to the Fusion Center over quasi-static Rayleigh fading channels (QSRC). In order to analyze our approach, we will investigate first the orthogonal channels, and secondly the non-orthogonal ones introducing a virtual MISO in the communication. We consider in both cases that the nodes have Channel State Information (CSI). Simulations that have been conducted using these two channel configurations show that, thanks to our new algorithm, the network lifetime is extended by an average that can reach 82,80% compared to the network lifetime in the other methods.

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Impact of Transmission Synchronization Error and Cooperative Reception Techniques on the Performance of Cooperative MIMO Systems

Cited by 32 publications

References 11 publications

Effect of Synchronization Error on Optical Spatial Modulation

Effect of Synchronization Error on Optical Spatial Modulation

Non-regenerative full distributed space-time codes in cooperative relaying networks

Increasing network lifetime in an energy-constrained wireless sensor network

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