Multipath multihop mmWave backhaul in ultra-dense small-cell network

Saadat, Salman; Chen, Da; Jiang, Tao

doi:10.1016/j.dcan.2017.08.002

Cited by 22 publications

(11 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ref. [33] develops a multipath-multihop (MPMH) scheme of in-band mm-wave transmission that achieves cost-effective and scalable deployment for varying picocell densities. Ref.…”

Section: A Prior Workmentioning

confidence: 99%

Joint Optimization of Survivability and Energy Efficiency in 5G C-RAN With mm-Wave Based RRH

Tian

Zhang

et al. 2020

IEEE Access

View full text Add to dashboard Cite

Centralized Radio Access Networks (C-RAN) exploiting millimeter wave (mm-wave) technology in remote radio heads (RRHs) are regarded as a promising approach to satisfy the challenging service requirements of fifth generation (5G) mobile communication. However, ultra-dense deployment of mm-wave RRHs will generate enormous amount of traffic that will require effective design and operation of C-RAN backhaul. In this paper, we focus on developing an optimal mm-wave RRHs placement strategy that exploits resource and traffic assignment in RRHs to achieve reliable and energy efficient backhaul transmissions. Specifically, in this paper, mm-wave is considered both to provide end users access and to interconnect RRHs in same frequency band, hence achieving energy saving thanks to hardware and frequency reuse. In this scenario, leveraging the traffic predictions obtained by a deep neural network, we present a real-time traffic assignment scheme where traffic from affected RRHs can be rerouted to other RRHs to protect against backhaul failures and traffic migrates to as few RRHs as possible to switch off some backhaul links for energy efficiency. Due to the inherent short-range transmission of mm-wave, different RRH deployment locations significantly affect interconnections in RRHs. Therefore, we model the mm-wave RRH placement problem into an optimization framework that jointly maximizes backhaul survivability and energy efficiency, whilst subjects to constraints as network coverage and capacity. To guarantee scalability of the proposed scheme as network scale increases, a heuristic algorithm is also proposed. Numerical evaluations show that, with appropriate RRH placement strategies, significant survivability and energy efficiency improvements can be achieved. INDEX TERMS Centralized radio access network, backhaul link, millimeter wave, survivability, energy efficiency.

show abstract

“…Ref. [33] develops a multipath-multihop (MPMH) scheme of in-band mm-wave transmission that achieves cost-effective and scalable deployment for varying picocell densities. Ref.…”

Section: A Prior Workmentioning

confidence: 99%

Joint Optimization of Survivability and Energy Efficiency in 5G C-RAN With mm-Wave Based RRH

Tian

Zhang

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…In this paper, we focus on the multi-link (or multi-path) setting in a three-node network. This network is useful in modeling mobile applications that simultaneously use both WiFi and cellular links, heterogeneous networks [28], software-defined networking [29] and smart cities backhaul [30]. Taking the results in [24] into account, we develop a coding scheme that allows for the relay to jointly encode data arriving from different paths, which has not been studied in [23], [27].…”

Section: Introductionmentioning

confidence: 99%

Error-correcting codes for low latency streaming over multiple link relay networks

Facenda¹,

Domanovitz²,

Khisti³

et al. 2022

Preprint

View full text Add to dashboard Cite

This paper investigates the performance of streaming codes in low-latency applications over a multi-link three-node relayed network. The source wishes to transmit a sequence of messages to the destination through a relay. Each message must be reconstructed after a fixed decoding delay. The special case with one link connecting each node has been studied by Fong et. al [1], and a multi-hop multi-link setting has been studied by Domanovitz et. al [2]. The topology with three nodes and multiple links is studied in this paper. Each link is subject to a different number of erasures due to different channel conditions. An information-theoretic upper bound is derived, and an achievable scheme is presented. The proposed scheme judiciously allocates rates for each link based on the concept of delay spectrum. The achievable scheme is compared to two baseline schemes and the scheme proposed in [2]. Experimental results show that this scheme achieves higher rates than the other schemes, and can achieve the upper bound even in non-trivial scenarios. The scheme is further extended to handle different propagation delays in each link, something not previously considered in the literature. Simulations over statistical channels show that the proposed scheme can outperform the simpler baseline under practical models.

show abstract

“…However, because of the higher frequencies, these bands are prone to atmospheric effects or rain fade, which can attenuate the signal and limit its range. Thus, the wireless option presents more challenging issues to face, such as the directional LOS design [22], the self-BH [23][24][25] or the multi-hop BH [26][27][28]. The in-band self-BH problem is aimed at finding the optimal BH and access time resource partition, combined with the user association and the beam alignment.…”

Section: Introductionmentioning

confidence: 99%

Backhaul-Aware Dimensioning and Planning of Millimeter-Wave Small Cell Networks

et al. 2020

View full text Add to dashboard Cite

The massive deployment of Small Cells (SCs) is increasingly being adopted by mobile operators to face the exponentially growing traffic demand. Using the millimeter-wave (mmWave) band in the access and backhaul networks will be key to provide the capacity that meets such demand. However, dimensioning and planning have become complex tasks, because the capacity requirements for mmWave links can significantly vary with the SC location. In this work, we address the problem of SC planning considering the backhaul constraints, assuming that a line-of-sight (LOS) between the nodes is required to reliably support the traffic demand. Such a LOS condition reduces the set of potential site locations. Simulation results show that, under certain conditions, the proposed algorithm is effective in finding solutions and strongly efficient in computational cost when compared to exhaustive search approaches.

show abstract

Multipath multihop mmWave backhaul in ultra-dense small-cell network

Cited by 22 publications

References 10 publications

Joint Optimization of Survivability and Energy Efficiency in 5G C-RAN With mm-Wave Based RRH

Joint Optimization of Survivability and Energy Efficiency in 5G C-RAN With mm-Wave Based RRH

Error-correcting codes for low latency streaming over multiple link relay networks

Backhaul-Aware Dimensioning and Planning of Millimeter-Wave Small Cell Networks

Contact Info

Product

Resources

About