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- research-articleOctober 2024
Joint call admission control and load-balancing in ultra-dense cellular networks: a proactive approach
Wireless Networks (WIRE), Volume 31, Issue 2Pages 1529–1540https://doi.org/10.1007/s11276-024-03859-2AbstractCellular networks adopt call admission control (CAC) algorithms to prevent network congestion and guarantee quality of service (QoS) for user equipments (UEs). Conventional CAC algorithms accept or reject incoming calls based on radio resource ...
- research-articleSeptember 2021
Call Admission Control Decision Maker Based on Optimized Fuzzy Inference System for 5G Cloud Radio Access Networks
Wireless Personal Communications: An International Journal (WPCO), Volume 120, Issue 1Pages 749–769https://doi.org/10.1007/s11277-021-08487-zAbstractFifth generation (5G) cell frameworks are relied upon to encounter colossal traffic congestion from mobile devices. To decrease network congestion, the 5G cell systems need to be changed to accommodate the soaring traffic demands from these ...
- articleJuly 2019
Multi-virtual wireless mesh networks through multiple channels and interfaces
Wireless Networks (WIRE), Volume 25, Issue 5Pages 2269–2284https://doi.org/10.1007/s11276-017-1650-7The high flexibility of the wireless mesh networks (WMNs) physical infrastructure can be exploited to provide communication with different technologies and support for a variety of different services and scenarios. Context information may trigger the ...
- articleApril 2018
A novel statistical and distributed CAC algorithm for IEEE 802.11 based single and multi-hop wireless ad hoc networks
In this paper, we propose a statistical Call Admission Control (CAC) schemes for single and multi-hop IEEE 802.11 based wireless ad hoc networks. Unlike most papers which consider average end-to-end delay, our algorithm guarantees statistical delay that ...
- articleApril 2018
An enhanced radio resource management based MIH policies in heterogeneous wireless networks
Telecommunications Systems (TESY), Volume 67, Issue 4Pages 577–592https://doi.org/10.1007/s11235-017-0358-4The require of omnipresent wireless access and high data rate services are expected to increase extensively in the near future. In this context, heterogeneous networks, which are a mixture of different wireless technologies (LTE-advanced, LTE-advanced ...
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- articleFebruary 2018
Handover Management in Two-Tier Femtocell---Macrocell Network
Wireless Personal Communications: An International Journal (WPCO), Volume 98, Issue 3Pages 2849–2866https://doi.org/10.1007/s11277-017-5004-7Good mobile coverage and better data rate is key to customer satisfaction. For latest 4G and 5G technologies as well 5 bar mobile coverage is required, to perform at its best. Small cell technology like femtocell helps these latest mobile communication ...
- research-articleSeptember 2017
A bandwidth adaptation mechanism for Cloud Radio Access Networks
Pervasive and Mobile Computing (PAMC), Volume 40, Issue CPages 639–659https://doi.org/10.1016/j.pmcj.2017.06.023The Cloud Radio Access Network (C-RAN) is regarded as the possible implementation approach of the next-generation mobile networks. C-RAN splits a traditional base station into remote radio heads (RRHs) and the base band unit (BBU). Many BBUs are co-...
- articleSeptember 2017
User Association-Based Joint Admission and Power Control for Heterogeneous Wireless Networks
Wireless Personal Communications: An International Journal (WPCO), Volume 96, Issue 2Pages 2485–2502https://doi.org/10.1007/s11277-017-4308-yHeterogeneous networks (HetNets) principally composed of macro-cells overlaid with small cells can potentially improve the coverage and capacity of existing cellular networks and satisfy the growing demands of data throughput. In HetNets, small cells ...
- articleAugust 2017
A Discrete Event Simulation for Hierarchical Mobile IPv6
Wireless Personal Communications: An International Journal (WPCO), Volume 95, Issue 4Pages 4883–4901https://doi.org/10.1007/s11277-017-4130-6In recent years' simulators like the open source tool ns-2, and commercial software's like OPNET have included Mobile IPv6 extensions in order to provide analysis for advanced Mobile IPv6 system development. Although these simulators are among the ...
- research-articleNovember 2016
Handover management framework for WiMAX Point-to-Multi-Point networks
Computers and Electrical Engineering (CENG), Volume 56, Issue CPages 205–221https://doi.org/10.1016/j.compeleceng.2015.12.004A distributed base station cooperation method for WiMAX PMP networks is proposed.A delay reduction method to support delay requirements during handover is proposed.A fair and starvation preventing call admission control method is proposed.Analytical ...
- articleOctober 2016
Call admission control for wireless mesh network based on power interference modeling using directional antenna
Wireless Networks (WIRE), Volume 22, Issue 7Pages 2299–2316https://doi.org/10.1007/s11276-015-1096-8Interference is a fundamental issue in wireless mesh networks (WMNs) and it seriously affects the network performance. In this paper we characterize the power interference in IEEE 802.11 CSMA/CA based wireless mesh networks using directional antennas. ...
- articleOctober 2015
Performance Evaluation of Call Admission Control Schemes with New Call Reattempts in Wireless Cellular Networks
Wireless Personal Communications: An International Journal (WPCO), Volume 84, Issue 4Pages 2859–2879https://doi.org/10.1007/s11277-015-2770-yThe majority of call admission control schemes proposed for wireless cellular networks do not take new call redials into account. However, connection reattempts are known to have a negative impact on the system performance because they generate more ...
- research-articleAugust 2015
An effective cross-layer designed packet scheduling, call admission control, and handover system for video streaming services over LTE network
Journal of Visual Communication and Image Representation (JVCIR), Volume 31, Issue CPages 335–346https://doi.org/10.1016/j.jvcir.2015.07.008We define QoE metrics based on the amount of buffered video frames.We propose cross-layer designed PS, CAC, and HO system tightly coupled on QoE state.The PS algorithm considers QoE states and wireless link states of UEs.The CAC algorithm estimates cell ...
- articleMarch 2015
Narrowing the Search for Optimal Call-Admission Policies Via a Nonlinear Stochastic Knapsack Model
Journal of Optimization Theory and Applications (JOPT), Volume 164, Issue 3Pages 819–841https://doi.org/10.1007/s10957-014-0570-2Call admission control with two classes of users is investigated via a nonlinear stochastic knapsack model. The feasibility region represents the subset of the call space, where given constraints on the quality of service have to be satisfied. ...
- articleSeptember 2014
Performance Evaluation of Non-prioritized and Prioritized Call Admission Control Schemes in Wireless Cellular Networks
Wireless Personal Communications: An International Journal (WPCO), Volume 78, Issue 1Pages 69–84https://doi.org/10.1007/s11277-014-1736-9In cellular wireless networks, the choice of Call Admission Control scheme impacts the performance of the system, particularly as how calls are managed when a mobile user is handed off from one cell to another. Non-prioritized schemes treat handoff ...
- articleSeptember 2013
Combining quality of services path first routing and admission control to support VoIP traffic
Future Generation Computer Systems (FGCS), Volume 29, Issue 7Pages 1742–1750https://doi.org/10.1016/j.future.2012.03.026Existing interactive communication applications, like VoIP, are designed to manage losses and delay in real IP networks. We present a novel call admission control for VoIP based on blocking percentage calculation (BPC). Blocking rates were measured ...
- articleApril 2013
Improving quality of experience in wireless VoIP through novel call scheduling
Telecommunications Systems (TESY), Volume 52, Issue 4Pages 1905–1916https://doi.org/10.1007/s11235-011-9473-9In the last few years we have experienced a dramatic increase in the use of IP networks for voice applications (VoIP) over wireless networks due to increased bandwidth availability and enhanced device capabilities. Since demand often exceeds available ...
- articleFebruary 2013
Short Communication: Comment on "Probabilistic framework and performance evaluation for prioritized call admission control in next generation networks"
Computer Communications (COMS), Volume 36, Issue 3Pages 360–361https://doi.org/10.1016/j.comcom.2012.11.011Major errors in the indicated work are point out.
- articleJanuary 2013
A dynamic joint scheduling and call admission control scheme for IEEE 802.16 networks
Telecommunications Systems (TESY), Volume 52, Issue 1Pages 195–202https://doi.org/10.1007/s11235-011-9555-8We propose a dynamic joint scheduling and call admission control (CAC) scheme for service classes defined in IEEE 802.16 standard. Using priority functions, equipped with service weights and service arrival rates, the proposed scheduling scheme ...
- articleOctober 2012
Dynamic spectrum access based on interruptible spectrum leasing
Dynamic spectrum access (DSA) based on interruptible spectrum leasing allows secondary users (SUs) to lease a licensed, but idle, spectrum that is owned by primary users (PUs) on condition that the PUs preempt the access to the leased spectrum. This ...