Resource Allocation in Passive Optical Network based Mobile Backhaul for User Mobility and Fog Computing

Author(s):  
Jiannan Ou ◽  
Jun Li ◽  
Lilin Yi ◽  
Jiajia Chen
2019 ◽  
Author(s):  
André Fernandes ◽  
Fabricio De Souza Farias ◽  
Aline Ohashi ◽  
Marcos Oliveira ◽  
João Crisostomo Weyl Albuquerque Costa

Fifth generation (5G) cellular networks will be the key element of a society that is becoming increasingly interconnected and digitalized. Applications adopted in many social and industrial sectors will require from 5G networks higher standards of availability and reliability. These requirements are leading operators to plan the deployment of protection schemes in the backhaul layer. In this context, our aim is to employ simulation to assess in a technical and economic way different backhaul protection schemes based on passive optical network (PON). The results indicate that the use of protection can increase the viability of 5G networks based on a PON backhaul supporting a hybrid fronthaul with fiber and copper.


2013 ◽  
Vol 61 (4) ◽  
pp. 1554-1561 ◽  
Author(s):  
Luying Zhou ◽  
Zhaowen Xu ◽  
Qirui Huang ◽  
Xiaofei Cheng ◽  
Yong-Kee Yeo ◽  
...  

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 217
Author(s):  
Peng Yang ◽  
Liao Chen ◽  
Hong Zhang ◽  
Jing Yang ◽  
Ruyan Wang ◽  
...  

Cooperative multipoint transmission (CoMP) is one of the most promising paradigms for mitigating interference in cloud radio access networks (C-RAN). It allows multiple remote radio units (RRUs) to transmit the same data flow to a user to further improve the signal quality. However, CoMP may incur redundant data transmission over fronthaul network in the C-RAN. In a C-RAN employing CoMP, a key problem is how to coordinate heterogeneous resource allocation to maximize the cooperation gain while reducing the fronthaul load. In this paper, the cooperation transmission based on a multi-dimensional resource schedule (MRSCT) scheme, jointly considering user association, spectrum resource allocation, and wavelength resource allocation, is firstly envisioned in the underlying C-RAN integrating time and wavelength division multiplexing passive optical network (TWDM-PON) to maximize fronthaul efficiency. Then a two-timescale resource allocation framework including two sub-approaches is established. More specially, the first sub-approach mainly focuses on exploiting reinforcement learning to obtain a wavelength resource allocation strategy to relieve fronthaul traffic load. Moreover, the second sub-approach adopts the overlapping coalition formation game to establish a user-centric cooperative set, where spectrum resources are dynamically allocated to further alleviate the interference issue. The theoretical analysis and simulation results validate the performance of MRSCT scheme on the fronthaul efficiency, user experience, and system service capability.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 134707-134715
Author(s):  
Nianfei Zhan ◽  
Chaoqin Gan ◽  
Jianqiang Hui ◽  
Yaqin Guo

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