Hybrid Automatic-Repeat-reQuest Systems for Cooperative Wireless Communications

Ngo, Hoang Anh; Hanzo, Lajos

doi:10.1109/surv.2013.071913.00073

Cited by 37 publications

(20 citation statements)

References 234 publications

(449 reference statements)

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“…Note that owing to the high velocity of the aircraft, no physical layer transmission scheme can guarantee successful transmission for every transmission slot. Other higher-layer measures, such as Automatic-Repeat-reQuest (ARQ) [39], [40], can be employed for enhancing reliable communication among aircraft. Discussing these higher-layer techniques is beyond the scope of this paper.…”

Section: B Distance-based Acm Schemementioning

confidence: 99%

Adaptive Coding and Modulation for Large-Scale Antenna Array-Based Aeronautical Communications in the Presence of Co-Channel Interference

Zhang

Chen

Maunder

et al. 2018

IEEE Trans. Wireless Commun.

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In order to meet the demands of 'Internet above the clouds', we propose a multiple-antenna aided adaptive coding and modulation (ACM) for aeronautical communications. The proposed ACM scheme switches its coding and modulation mode according to the distance between the communicating aircraft, which is readily available with the aid of the airborne radar or the global positioning system. We derive an asymptotic closed-form expression of the signal-to-interference-plus-noise ratio (SINR) as the number of transmitting antennas tends to infinity, in the presence of realistic co-channel interference and channel estimation errors. The achievable transmission rates and the corresponding mode-switching distancethresholds are readily obtained based on this closed-form SINR formula. Monte-Carlo simulation results are used to validate our theoretical analysis. For the specific example of 32 transmit antennas and 4 receive antennas communicating at a 5 GHz carrier frequency and using 6 MHz bandwidth, which are reused by multiple other pairs of communicating aircraft, the proposed distance-based ACM is capable of providing as high as 65.928 Mbps data rate when the communication distance is less than 25 km.Award, and the Innovate UK funded Harmonised Antennas, Radios, and Networks (HARNet) are gratefully acknowledged. ultra high frequency (UHF) band has almost been fully occupied by television broadcasting, cell phones and satellite communications, including the global positioning system (GPS). Thus, no substantial idle frequency bands can be found in the UHF band either. This motivates us to explore the super high frequency (SHF) band spanning from 3 GHz to 30 GHz, for example, using 5 GHz carrier frequency for this aeronautical communication application. Note that even if there were sufficient unused frequency slots in the VHF and UHF bands, it is advisable not to use them because the frequency band of the envisaged airborne Internet access system should be sufficiently far away from the bands assigned to the safety-critical air control and management systems, satellite communication and GPS systems. ACM [9], [10] has been demonstrated to be a powerful technique of increasing data rate and improving SE over wireless fading channels. It has been extensively investigated also in the context of IEEE 802.11 [11], LTE-advance 4G mobile systems [12], [13] and broadband satellite communication systems [14]. The optimal ACM relies on the perfect knowledge of the instantaneous CSI, but channel estimation errors are unavoidable in practical communication systems [15]. Furthermore, the CSI of frequency division duplexing based systems must be obtained through a feedback channel, which potentially introduces feedback errors and delays [16]. These factors significantly degrade the ACM performance. In order to reduce the sensitivity to CSI errors, Zhou et al. [15] proposed an adaptive modulation scheme relying on partial CSI, while Taki et al. [17] designed an ACM scheme based directly on imperfect CSI. A whole range of differentially enco...

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Section: B Distance-based Acm Schemementioning

confidence: 99%

Adaptive Coding and Modulation for Large-Scale Antenna Array-Based Aeronautical Communications in the Presence of Co-Channel Interference

Zhang

Chen

Maunder

et al. 2018

IEEE Trans. Wireless Commun.

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“…However, the network setting and the system model in [6], [8], [14], [16] are vastly different from those considered in this paper, so constituting a meaningful comparison of these previous works with the network coded methods in our paper does not seem possible. The main contribution of this work is to propose an adaptive cooperative ARQ scheme which utilize network coding for two way relay channels and derive the network throughput of such a system by taking channel correlation into account.…”

Section: C-nc-arq Methodsmentioning

confidence: 99%

“…From Notice that, RR, AR and CR strategies fall in the group of C-ARQ and there exist some works in the literature that corresponds to modified versions these strategies such as [8] (Protocol I), [14] and [16] which coincide with RR strategy, and [6] and [8] (Protocol II) which correspond to CR strategy. However, the network setting and the system model in [6], [8], [14], [16] are vastly different from those considered in this paper, so constituting a meaningful comparison of these previous works with the network coded methods in our paper does not seem possible.…”

Section: C-nc-arq Methodsmentioning

confidence: 99%

Cooperative Network Coded ARQ Strategies for Two Way Relay Channels

Tutgun

Aktas

2014

IEEE Trans. Veh. Technol.

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In this paper, novel cooperative automatic repeat request (ARQ) methods with network coding are proposed for two way relaying network where two communicating nodes are assisted by a relay node at the cooperative retransmission phase upon a failed transmission of a packet. The proposed approach integrates network coding into cooperative ARQ, aiming to improve the network throughput by reducing the number of retransmissions. For successive retransmission, three different methods for choosing the retransmitting node are considered. The throughput of the methods are analyzed and compared. The analysis is based on binary Markov channel which takes the correlation of the channel coefficients in time into account. Analytical results show that the proposed use of network coding enhance throughput performance up to 15% compared to cooperative ARQ without network coding and 40% compared to traditional ARQ when the relay channel conditions are better than the direct channel between two communicating nodes. It is also observed that correlation can have significant effect on the performance of the proposed cooperative network coded ARQ approach. In particular the proposed approach is advantageous for moderately fast to slow fading channels where channel correlation coefficient varies from 0.5 to 1.

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“…In order to recover the lost packet for improving reliability at the network layer, one of the most widely used techniques is hybrid automatic repeat request (HARQ) [15]. HARQ in conjunction with relay networks has attracted substantial research interest in recent years [16]. Because data symbols in practical transmission often utilize linear modulations of finite-size constellations (e.g., quadrature phase-shift keying (PSK), or quadrature quadrature amplitude modulation (QAM)), the performances of relay-aided HARQ systems can benefit from modulation diversity, in which each group of log 2 Q bits is mapped to a different constellation point across different links and in different transmissions to better exploit channel diversity.…”

Section: Introductionmentioning

confidence: 99%

Efficient Modulation Scheme for Intermediate Relay-Aided IoT Networks

et al. 2020

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With the surge of ubiquitous demand for high-complexity and quality mobile Internet-of-things (IoT) services, new cooperative relaying paradigms have emerged. Motivated by the long and unpredictable end-to-end communication in relay-aided IoT networks, there is a need to introduce novel modulation schemes for very low bit error rate (BER) communications. In this paper, a practical modulation mapping scheme has been proposed to reduce decoding errors. Specifically, a hybrid automatic repeat request (HARQ) system has been used with an intermediate relay to transfer a message from a source to a destination. The design of modulation mapping has been optimized by first formulating the objective as the quadratic assignment problem. Later, the solution to the mapping problem is provided using an iterative search method. To validate the proposed solution, extensive simulations have been performed in MATLAB. The results show that the proposed solution outperforms the conventional relay retransmission and the heuristic design approaches.

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Hybrid Automatic-Repeat-reQuest Systems for Cooperative Wireless Communications

Cited by 37 publications

References 234 publications

Adaptive Coding and Modulation for Large-Scale Antenna Array-Based Aeronautical Communications in the Presence of Co-Channel Interference

Adaptive Coding and Modulation for Large-Scale Antenna Array-Based Aeronautical Communications in the Presence of Co-Channel Interference

Cooperative Network Coded ARQ Strategies for Two Way Relay Channels

Efficient Modulation Scheme for Intermediate Relay-Aided IoT Networks

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