Small cell backhaul: challenges and prospective solutions
Reads0
Chats0
TLDR
Simulation results confirm that the optimum backhaul solution is a combination of various options, which can overcome inherent scenario constraints while providing a cost-effective performance.Abstract:
Operators are currently considering the deployment of small cells to complement their macrocellular networks and increase their coverage and capacity. However, in order to roll-out a large number of small cells and allow anytime, anywhere wireless broadband connectivity through wireless technologies, operators must still face the challenge of backhauling the traffic from the small cells to the core network in a cost-effective manner. In this paper, backhaul challenges for small cell base stations (BSs) are discussed, and potential wired and wireless solutions together with their benefits and drawbacks are presented. The use of large scale antennas systems and free-space optics is also discussed. Moreover, a wireless backhaul planning tool targeted at finding the most cost-effective backhaul solution using a mixture of wireless technologies is presented. Simulation results confirm that the optimum backhaul solution is a combination of various options, which can overcome inherent scenario constraints while providing a cost-effective performance.read more
Citations
More filters
Journal ArticleDOI
Computation Offloading and Resource Allocation in Wireless Cellular Networks With Mobile Edge Computing
TL;DR: This work forms the computation offloading decision, resource allocation and content caching strategy as an optimization problem, considering the total revenue of the network, and develops an alternating direction method of multipliers-based algorithm to solve the optimization problem.
Journal ArticleDOI
Energy-Latency Tradeoff for Energy-Aware Offloading in Mobile Edge Computing Networks
TL;DR: An energy-aware offloading scheme, which jointly optimizes communication and computation resource allocation under the limited energy and sensitive latency, and an iterative search algorithm combining interior penalty function with D.C. (the difference of two convex functions/sets) programming to find the optimal solution.
Journal ArticleDOI
Joint Computation Offloading and Interference Management in Wireless Cellular Networks with Mobile Edge Computing
TL;DR: An integrated framework for computation offloading and interference management in wireless cellular networks with MEC is proposed and the outcomes of the offloading decision and PRB allocation are used to distribute the computation resource of the MEC server to the UEs.
Journal ArticleDOI
Joint Computation Offloading and User Association in Multi-Task Mobile Edge Computing
TL;DR: This paper proposes a novel two-tier computation offloading framework in heterogeneous networks, and formulates joint computation off loading and user association problem for multi-task mobile edge computing system to minimize overall energy consumption.
Journal ArticleDOI
Evolution towards fifth generation (5G) wireless networks: Current trends and challenges in the deployment of millimetre wave, massive MIMO, and small cells
TL;DR: The most promising lines of research from the recent literature in common directions for the 5G project are highlighted, which include spatial multiplexing using massive multi-user multiple-input multiple-output (MIMO) techniques with millimetre-waves (mm-waves) in small cell geometries.
References
More filters
Journal ArticleDOI
Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas
TL;DR: A cellular base station serves a multiplicity of single-antenna terminals over the same time-frequency interval and a complete multi-cellular analysis yields a number of mathematically exact conclusions and points to a desirable direction towards which cellular wireless could evolve.
Journal ArticleDOI
Scaling Up MIMO: Opportunities and Challenges with Very Large Arrays
Fredrik Rusek,Daniel Persson,Buon Kiong Lau,Erik G. Larsson,Thomas L. Marzetta,Fredrik Tufvesson +5 more
TL;DR: The gains in multiuser systems are even more impressive, because such systems offer the possibility to transmit simultaneously to several users and the flexibility to select what users to schedule for reception at any given point in time.
Book
Wireless Infrared Communications
Joseph M. Kahn,John R. Barry +1 more
TL;DR: The use of infrared radiation as a medium for high-speed short-range wireless digital communication, and several modification formats, including on-off keying (OOK), pulse-position modulation (PPM), and subcarrier modulation, are discussed.
Journal ArticleDOI
Fundamental analysis for visible-light communication system using LED lights
T. Komine,Masao Nakagawa +1 more
TL;DR: Based on numerical analyses, it is shown that the proposed indoor visible-light communication system utilizing white LED lights is expected to be the indoor communication of the next generation.
Journal ArticleDOI
Energy and Spectral Efficiency of Very Large Multiuser MIMO Systems
TL;DR: In this paper, the tradeoff between the energy efficiency and spectral efficiency of a single-antenna system is quantified for a channel model that includes small-scale fading but not large scale fading, and it is shown that the use of moderately large antenna arrays can improve the spectral and energy efficiency with orders of magnitude compared to a single antenna system.