Diversity and network coded 5G fronthaul wireless networks for ultra reliable and low latency communications

Sulieman, Nabeel I.; Balevi, Eren; Davaslıoğlu, Kemal; Gitlin, Richard D.

doi:10.1109/pimrc.2017.8292238

Cited by 18 publications

(8 citation statements)

References 9 publications

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“…Moreover, the throughput is further enhanced by using NC that combines packets by coding them and transmitting the output to the destination via various paths and links. Overall, the advantages of the two methods are merged here to generate a diversity coding and network coding (DC-NC) scheme [20]. Hence the proposed scheme enhances network reliability with very low latency in network recovery (restoration), in addition to magnified throughput.…”

Section: Dc-nc Beam Failure Recoverymentioning

confidence: 99%

“…In this scenario, F 11 and F 13 use their direct links with F 21 and F 23 to transmit p 1 , and p 3 respectively. Moreover, the DC-NC encoding AP I 1 receives p 1 , p 2 , and p 3 from F 11 , F 12 , and F 13 respectively and then it encodes them to compute three coded packets, denoted by c 1 , c 2 , and c 3 as follows [20],…”

Section: Dc-nc Beam Failure Recoverymentioning

confidence: 99%

“…The MS F 22 will receive p 1 and p 3 from APs F 21 and F 23 . Here F 21 decodes p 1 , c 1 , and c 2 and retrieves p 2 and p 3 as [20],…”

Section: Dc-nc Beam Failure Recoverymentioning

confidence: 99%

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Link Recovery Scheme for Multi-Point mmWave Communications

Aldalbahi

2019

Electronics

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Directional transmission in millimeter wave (mmWave) communications results in prolonged access times. This is attributed to the increased number of conducted measurements to determine optimum beam directions at the mobile station (MS) and base station (BS) that return the highest received signal levels. Additionally, once these beams are determined and links are established for data-planes, then blockage effects and outages make these links more vulnerable to link failures, resulting in communications drops. Hence, dynamic and fast recovery schemes are required to maintain communications sessions following the beam access stage. In this paper, a novel recovery access scheme is proposed for multi-point mmWave communications based on fog access points (AP). Namely, the scheme leverages diversity and network coding techniques to achieve near-instantaneous recovery times, without the need for beam scanning. The scheme features near-instantaneous data recovery times and efficient power consumption as compared to traditional recovery methods.Electronics 2020, 9, 50 2 of 12 using a uniform linear array of 15 microstrip antennas). These gains compensate for the aforementioned limitations, i.e., path and penetration losses, and noise bandwidth.However, beamforming architectures result in directional transmission and reception at the mobile station (MS) and base station (BS), i.e., absence of omni-directional transmission mode. This results in concentrating energy in certain directions and increase of aperture effective areas, i.e., increasing received power levels. Namely, the mmWave channel is expected to vary in fractions of seconds (in order of microseconds). For instant high Doppler spreads of MS along with small coherence times, mmWaves can experience drastic time varying channels, more than the variations experienced in today networks, which results in complex channel tracking requirements.Furthermore, fog networks have been proposed as a potential candidate for cloud radio access networks for future cellular networks as presented in [5,6]. Fog nodes (APs) enable small cell implementation, where these APs are at short-proximity and low powered. They are capable of interconnecting thousands of devices (enabling IoT) while boosting capacities and reducing latencies. These APs also provide significant amount of storage and computation features as well. Hence, it is projected that mmWave communications will be merged with fog computing for the support of future cellular networks. These APs deploy directional transition, in terms of beamforming to communicate with various devices (e.g., MS).One major challenge here is initial beam access (beam acquisition) and beam adaptation between these APs and the MSs. The established directional links at mmWave bands are highly sensitivity to obstacles and objects in the propagation link, e.g., human blockage can yield in 20 dB losses. This blockage occurs when transiting from line-of-sight (LoS) to non-line-of-sight (NLoS), i.e., resulting in signal degradation. Consequently, sign...

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Section: Dc-nc Beam Failure Recoverymentioning

confidence: 99%

Section: Dc-nc Beam Failure Recoverymentioning

confidence: 99%

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Link Recovery Scheme for Multi-Point mmWave Communications

Aldalbahi

2019

Electronics

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“…The average delay is shown lower while INCC is used compared to other algorithms. The research of [8] put forth the implementation of NC and Diversity Coding (DC) in 5G wireless Cloud Radio Access Network (C-RAN). It appears that the combined usage of NC and DC leads to an increase in throughput of fronthaul networks for downlink broadcasting and multicasting.…”

Section: Introductionmentioning

confidence: 99%

Network Coding Aware User Plane for Mobile Networks

Türk¹,

Zeydan²,

Bilgin³

et al. 2020

2020 16th International Conference on Network and Service Management (CNSM)

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In this paper, we propose a network coding (NC) enabled transmission strategy in the User Plane (UP) of mobile backhaul for networks operators. In the proposed method, NC provides robustness against the transport network failures, so that there will not be any more processing for re-transmission by the User Equipment (UE) in comparison to traditional approaches where re-transmissions are performed by UE applications. Our simulation results indicate that an average 1% loss ratio in the backhaul link creates 59.44% additional total transmission time compared to normal standard GPRS Tunneling Protocol -User Plane (GTP-U) transmission. On the other hand, applying NC at 1% and 2% rates reduces this amount to 52.99% and 56.26% respectively, which is also better than the total transmission time performance of some previously studied dynamic replication schemes as keeping bandwidth utilization at low ratios. Moreover, we also observe a trade-off between total transmission time and NC rate related to expected packet loss ratio such that minimum total transmission time is obtained when NC rate is equal to expected packet loss rate.

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“…In addition to low latency and excessive data rate, reliability is also an important metric in 5G [14], [15]. Under the Cloud-RAN architecture, FH needs to provide comparative reliability to enable adoption of Cloud-RAN.…”

Section: Introductionmentioning

confidence: 99%

Latency Bounds of Packet-Based Fronthaul for Cloud-RAN with Functionality Split

Mountaser¹,

Mahlouji²,

Mahmoodi

2019

ICC 2019 - 2019 IEEE International Conference on Communications (ICC)

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The emerging Cloud-RAN architecture within the fifth generation (5G) of wireless networks plays a vital role in enabling higher flexibility and granularity. On the other hand, Cloud-RAN architecture introduces an additional link between the central, cloudified unit and the distributed radio unit, namely fronthaul (FH). Therefore, the foreseen reliability and latency for 5G services should also be provisioned over the FH link. In this paper, focusing on Ethernet as FH, we present a reliable packetbased FH communication and demonstrate the upper and lower bounds of latency that can be offered. These bounds yield insights into the trade-off between reliability and latency, and enable the architecture design through choice of splitting point, focusing on high layer split between PDCP and RLC and low layer split between MAC and PHY, under different FH bandwidth and traffic properties. Presented model is then analyzed both numerically and through simulation, with two classes of 5G services that are ultra reliable low latency (URLL) and enhanced mobile broadband (eMBB).

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Diversity and network coded 5G fronthaul wireless networks for ultra reliable and low latency communications

Cited by 18 publications

References 9 publications

Link Recovery Scheme for Multi-Point mmWave Communications

Link Recovery Scheme for Multi-Point mmWave Communications

Network Coding Aware User Plane for Mobile Networks

Latency Bounds of Packet-Based Fronthaul for Cloud-RAN with Functionality Split

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