Journal ArticleDOI
Multi-Tier Cellular Network Dimensioning
Eylem Ekici,Cem Ersoy +1 more
TLDR
This study introduces a Simulated Annealing (SA) based method to determine the design parameters of a multi-tier cellular network, for which the implementation cost is minimized.Abstract:
Wireless communications systems enable the end users to be mobile. The majority of the wireless communications networks are cellular networks. Several methods are developed to increase the performance of the cellular networks, which depends on the correct determination of the design parameters as well as the architecture of the system and the traffic requirements. In this study, we introduce a Simulated Annealing (SA) based method to determine the design parameters of a multi-tier cellular network, for which the implementation cost is minimized. The cellular system employs guard channels and allows calls to overflow to upper tiers. We conducted experiments with the SA-based technique on different example problems in two-tier cellular networks and obtained promising results.read more
Citations
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Journal ArticleDOI
Modeling and Analysis of K-Tier Downlink Heterogeneous Cellular Networks
Abstract: Cellular networks are in a major transition from a carefully planned set of large tower-mounted base-stations (BSs) to an irregular deployment of heterogeneous infrastructure elements that often additionally includes micro, pico, and femtocells, as well as distributed antennas. In this paper, we develop a tractable, flexible, and accurate model for a downlink heterogeneous cellular network (HCN) consisting of K tiers of randomly located BSs, where each tier may differ in terms of average transmit power, supported data rate and BS density. Assuming a mobile user connects to the strongest candidate BS, the resulting Signal-to-Interference-plus-Noise-Ratio (SINR) is greater than 1 when in coverage, Rayleigh fading, we derive an expression for the probability of coverage (equivalently outage) over the entire network under both open and closed access, which assumes a strikingly simple closed-form in the high SINR regime and is accurate down to -4 dB even under weaker assumptions. For external validation, we compare against an actual LTE network (for tier 1) with the other K-1 tiers being modeled as independent Poisson Point Processes. In this case as well, our model is accurate to within 1-2 dB. We also derive the average rate achieved by a randomly located mobile and the average load on each tier of BSs. One interesting observation for interference-limited open access networks is that at a given \sinr, adding more tiers and/or BSs neither increases nor decreases the probability of coverage or outage when all the tiers have the same target-SINR.
Proceedings ArticleDOI
A tractable framework for coverage and outage in heterogeneous cellular networks
TL;DR: A tractable, flexible, and accurate model for downlink heterogeneous cellular networks that consists of K tiers of randomly-located base stations, where each tier may differ in terms of the average transmit power, the supported data rate and the BS density is developed.
Journal ArticleDOI
Comparison and evaluation of multiple objective genetic algorithms for the antenna placement problem
TL;DR: This study uses a greedy algorithm to select and configure base station locations and compares the ability of four state-of-the-art multiple objective genetic algorithms to find an optimal ordering of potential base stations.
Journal ArticleDOI
Modeling and Analysis of K-Tier Downlink Heterogeneous Cellular Networks
TL;DR: This paper develops a tractable, flexible, and accurate model for a downlink heterogeneous cellular network (HCN) consisting of K tiers of randomly located BSs, where each tier may differ in terms of average transmit power, supported data rate and BS density.
Proceedings ArticleDOI
Coverage and ergodic rate in K-tier downlink heterogeneous cellular networks
TL;DR: This work proposes a flexible, accurate and tractable model for a general downlink HCN consisting of K tiers of randomly located BSs, where each tier may differ in terms of average transmit power, supported data rate, and BS density.
References
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Book
Wireless Communications: Principles and Practice
TL;DR: WireWireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design as discussed by the authors, which covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs).
Book
Data networks
TL;DR: Undergraduate and graduate classes in computer networks and wireless communications; undergraduate classes in discrete mathematics, data structures, operating systems and programming languages.
Journal ArticleDOI
Channel assignment schemes for cellular mobile telecommunication systems: a comprehensive survey
I. Katzela,Mahmoud Naghshineh +1 more
TL;DR: This article provides a detailed discussion on reuse partitioning schemes, the effect of handoffs, and prioritization schemes, and other important issues in resource allocation such as overlay cells, frequency planning, and power control.
Journal ArticleDOI
Mobility management in next-generation wireless systems
TL;DR: In this article, current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP) wireless asynchronous transfer mode (ATM) and satellite networks are discussed in the context of the next evolutionary step of wireless communication networks.