Distributed differential beamforming and power allocation for cooperative communication networks

Alabed, Samer; Maaz, Issam; Al-Rabayah, Mohammad

doi:10.11591/ijece.v10i6.pp5923-5931

Cited by 6 publications

(9 citation statements)

References 24 publications

(65 reference statements)

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“…Many schemes [26], [27] of cooperation can be divided into three famous approaches or systems such as amplify and forward (AF) relay as shown in Figure 1 (a), decode and forward (DF) relay as shown in Figure 1 (b) and compress and forward (CF) relay as shown in Figure 1 (c), the CF relaying schemes are noticed to the cases which the relays forward quantized, compressed or estimated versions of its observation to the destination [28]- [30].…”

Section: Methodsmentioning

confidence: 99%

Proposed different relay selection schemes for improving the performance of cooperative wireless networks

Kadhim

Jabbar

2021

TELKOMNIKA

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Relay selection is a new method currently used to develop and improve cooperative wireless networks. One of the main advantages of this new technology is that it can achieve cooperative diversity gain without installing multiple antennas in the transmitter or receiver. Relay selection algorithms can be used to select one node to become a relay node from a set of N candidate relays with optimization criteria as the outage probability or frame error rate. The selection process is preferable to operate in a distributed fashion and offers only reasonable costs in terms of manufacturing complexity and flexible handling over wireless cooperative networks. In this work, different relay selection schemes are proposed to enhance the cooperative wireless networks in terms of different approaches including: 1) relay selection-based destination feedback scheme, 2) relay selection based a ready-to-send/clear-to-send (RTS/CTS) messages scheme, 3) relay selectionbased identification messages (IDM) table scheme, and 4) relay selectionbased relay power consuming scheme. The experimental results via suggested case study show that the performance of overall cooperative network is enhanced in terms of increasing throughput, energy saving (efficiency maximization), blocking reduction and outage reduction (PER minimization).

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Section: Methodsmentioning

confidence: 99%

Proposed different relay selection schemes for improving the performance of cooperative wireless networks

Kadhim

Jabbar

2021

TELKOMNIKA

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“…Advances made in MIMO signal processing techniques have shown tremendous improvements in reliability and throughput [13]- [19]. However due to size, cost, and hardware constraints, the use of MIMO techniques in ad-hoc networks may not always be feasible especially in small devices.…”

Section: Introductionmentioning

confidence: 99%

A low complexity distributed differential scheme based on orthogonal space time block coding for decode-and-forward wireless relay networks

Alabed

Mostafa²,

Aly³

et al. 2023

IJECE

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<span lang="EN-US">This work proposes a new differential cooperative diversity scheme with high data rate and low decoding complexity using the decode-and-forward protocol. The proposed model does not require either differential encoding or channel state information at the source node, relay nodes, or destination node where the data sequence is directly transmitted and the differential detection method is applied at the relay nodes and the destination node. The proposed technique enjoys a low encoding and decoding complexity at the source node, the relay nodes, and the destination node. Furthermore, the performance of the proposed strategy is analyzed by computer simulations in quasi-static Rayleigh fading channel and using the decode-and-forward protocol. The simulation results show that the proposed differential technique outperforms the corresponding reference strategies.</span>

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“…In addition, it is very well known that it is difficult to deploy several antennas at the same mobile station due to several limitations. Therefore, cooperative communication systems can be used to overcome this problem by randomly distributing a group of relay nodes between the two communicating parties [5][6][7][8][9][10][11]20,21]. Those relay nodes can be used in two modes of operation, either to amplify and forward (AF) the obtained signals or to detect the transmitted symbols before forwarding them to the receiving antennas.…”

Section: Introductionmentioning

confidence: 99%

A Beamforming Technique Using Rotman Lens Antenna for Wireless Relay燦etworks

Alabed¹,

Al-Rabayah²,

Aly³

2022

Computers, Materials &Amp; Continua

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Rotman lens, which is a radio frequency beam-former that consists of multiple input and multiple output beam ports, can be used in industrial, scientific, and medical applications as a beam steering device. The input ports collect the signals to be propagated through the lens cavity toward the output ports before being transmitted by the antenna arrays to the destination in order to enhance the error performance by optimizing the overall signal to noise ratio (SNR). In this article, a low-cost Rotman lens antenna is designed and deployed to enhance the overall performance of the conventional cooperative communication systems without needing any additional power, extra time or frequency slots. In the suggested system, the smart Rotman lens antennas generate a beam steering in the direction of the destination to maximize the received SNR at the destination by applying the proposed optimal beamforming technique. The suggested optimal beamforming technique enjoys high diversity, as well as, low encoding and decoding complexity. Furthermore, we proved the advantages of our suggested strategy through both theoretical results and simulations using Monte Carlo runs. The Monte Carlo simulations show that the suggested strategy enjoys better error performance compared to the current state-of-the-art distributed multiantenna strategies. In addition, the bit error rate (BER) curves drawn from the analytical results are closely matching to those drawn from our conducted Monte Carlo simulations.

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Distributed differential beamforming and power allocation for cooperative communication networks

Cited by 6 publications

References 24 publications

Proposed different relay selection schemes for improving the performance of cooperative wireless networks

Proposed different relay selection schemes for improving the performance of cooperative wireless networks

A low complexity distributed differential scheme based on orthogonal space time block coding for decode-and-forward wireless relay networks

A Beamforming Technique Using Rotman Lens Antenna for Wireless Relay燦etworks

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