GSM网无线信道利用率分析

通过对广东移动GSM网的无线测试，获得大量的无线测试数据，通过对这些数据的分析，找出小区在不同信道配置下的最佳信道利用率，推导出大、中、小城市不同类型地区总体的信道利用率，找出影响信道利用率指标的因素并提出了相应的改善措施。     

GSM无线利用率评估及在网络建设中的应用探讨

本文对GSM网络无线利用率影响因素进行了分析,并就无线利用率的核算公式、考核标准及其在确定网络无线建设规模中的应用进行了分析探讨。     

GSM网络无线利用率提升思路研究

随着LTE网络发展,VoLTE话务持续迁转, GSM语音话务量和语音业务占比持续走低;同时,运营商在GSM 900M频段上陆续完成FDD和NB-IoT网络部署,900M频段出现GSM、FDD LTE、NB-IoT共存的局面,频率资源进一步紧张。本文研究了GSM网络无线利用率提升思路,通过实现GSM网络资源利用率有效提升,为现网载频压降及频率压缩提供空间,为后续网络平稳演进做好准备。     

通用分组无线业务(GPRS)

本文首先介绍了通用分组无线业务(GPRS)的基本业务描述、网络组成 ,对基本工作流程进行了说明 ,然后简述了GPRS的引入对GSM网的影响 ,最后介绍了中国移动通信的GPRS试验情况。     

GSM现网无线利用率分析及其优化策略

首先对GSM网络的无线利用率指标展开论述,包括其定义、性能指标的取值分析,并针对该项指标中的不利因素提出整改思路;其次,作为无线网络优化的一个重要指标,无线利用率受多方面因素的影响,这些因素的共同作用也给无线利用率的分析带来更大的复杂性,为此对无线利用率问题进行详细讨论;在此基础上,最后提出了拆闲补忙的优化思路。     

PDCH信道配置规划分析

GPRS即通用分组无线业务,是在GSM技术的基础上提供的一种端到端分组交换业务。它最大限度重用已有的GSM网络基础设施．提高了GSM无线资源利用率。     

基于约束条件下的无线信道利用率评估方法探讨

本在比较分析业界GSM无线信道利用率研究实践基础上，提出了基于各种因素影响下的无线信道利用率评估方法，用于无线信道利用率的评估和优化。     

GSM-R无线路测系统的研究与实现

GSM—R网络是新一代铁路无线通信系统,对其无线接口的路测（DT：drivetest）工具日益成为网络优化工作者的急需。首先介绍并分析了GSM—R网络结构、业务模型、无线接口协议,然后讨论了无线路测的目的以及对网络优化工作的意义。在总结并分析这些理论的基础上,给出一种适用于GSM／GSM—R网络的无线路测系统。该系统为GSM／GSM—R网优工作者提供了有效的工具。     

通过跨网漫游实现移动通信覆盖的方案探探

主要讨论了GSM网中利用他网运营商的无线覆盖实现本网用户通信服务的2种方案，并通过对移动通信各个流程的技术分析对2种方案进行了对比，从而为国内通信运营商在边远地区合作实现移动通信覆盖提供借鉴。     

GSM900/1800双频网话务均衡与应用

为了改善小区拥塞情况,提高TCH利用率,介绍了GSM900/1800组网方式和无线传播的特点,通过对双频网话务均衡优化方法的分析,提出了对小区重选及切换参数的设置的优化方案,实现了GSM1800对话务量的吸收作用,达到了双频网话务均衡的目标。     

基于博弈论的校园无线网络资源利用模型

无线网络中存在资源瓶颈,而网络中的节点又是理性自私的,这就导致资源分配不均。把无线网络中的资源利用和博弈理论相结合,便产生了基于演化博弈的网络资源利用模型。文中把无线网络中的功率分配,通过演化博弈理论转化为信干噪比收益,最后得到使用功率的迭代公式,与传统的功率分配方法对比后,提出了改进策略,从而为无线网络中的资源利用提供了博弈策略,提高了无线网络的资源利用率,优化了网络环境。     

极端话务下无线资源配置的抗冲击能力分析

极端话务冲击下全网无线接入暴露出一定的问题。文章通过分析极端情况下全网无线性能接入表现，找出无线瓶颈并提升无线接入性的抗冲击能力弹性的资源配置；对比并分析在常态（平时）和非常态（极端）的无线利用率下资源、话务的分布，以在常态分析基础上提出无线资源在应对非常态下的网络性能和资源配置的合理建议，以提高应对突发事件的抗冲击能力。     

混合业务网络无线利用率区间分析法

主要讨论混合业务网络无线利用率的一种计算方法,建立适合各个地区业务模型特征的无线利用率评估标准,引导各个地区日常无线网络资源规划。     

CDMA蜂窝移动通信系统中基于Eb/No的无线分组公平调度算法

在第三代移动通信的无线资源管理机制中,分组调度机制在保证预期的服务质量（QoS）和优化无线资源的利用率方面起到了至关重要的作用.至今已经有很多的调度算法被提出,用来有效地提高无线网络资源的利用率.本文提出一种基于Eb/No并且利用功率控制和管理机制的无线分组公平调度算法用来保证QoS,优化资源配置并且达到调度公平性.     

Optimal resource allocation in wireless ad hoc networks: a price-based approach

The shared-medium multihop nature of wireless ad hoc networks poses fundamental challenges to the design of effective resource allocation algorithms that are optimal with respect to resource utilization and fair across different network flows. None of the existing resource allocation algorithms in wireless ad hoc networks have realistically considered end-to-end flows spanning multiple hops. Moreover, strategies proposed in wireline networks are not applicable in the context of wireless ad hoc networks, due to their unique characteristics of location-dependent contention. In this paper, we propose a new price-based resource allocation framework in wireless ad hoc networks to achieve optimal resource utilization and fairness among competing end-to-end flows. We build our pricing framework on the notion of maximal cliques in wireless ad hoc networks, as compared to individual links in traditional wide-area wireline networks. Based on such a price-based theoretical framework, we present a two-tier iterative algorithm. Distributed across wireless nodes, the algorithm converges to a global network optimum with respect to resource allocations. We further improve the algorithm toward asynchronous network settings and prove its convergence. Extensive simulations under a variety of network environments have been conducted to validate our theoretical claims.     

中国移动EGPRS数据业务的发展策略研究

中国移动EGPRS数据业务的快速发展,导致了2G网络综合利用率高位运行。通过对现网数据的分析和演绎提出在基本满足现有数据业务的条件下,近期可通过提高PDCH复用度以大幅节省数据载频资源,缓解数据业务压力;为了确保无线数据业务持续平稳发展,中远期的发展策略应重点关注EGPRS资源管控能力的提升和数据业务的有效分流。     

TD-SCDMA无线网络扩容指标探讨

随着市场和业务的发展,TD-SCDMA网络资源的需求持续增长,为有效、合理地使用TD-SCDMA无线网络资源,本文通过对TD-SCDMA网络利用率、码资源忙闲率的分析探讨,提出了更加全面、合理的扩容评估指标,以科学评估TD-SCDMA网络无线资源的负荷情况,促进网络资源高效、合理配置。     

Performance analysis of hierarchical cellular networks with queueing and user retrials

How to efficiently utilize the scarce radio channel resource while maintaining the desired user‐perceived quality level and improved network performance is a major challenge to a wireless network designer. As one solution to meet this challenge in cellular mobile networks, a network architecture with hierarchical layers of cells has been widely considered. In this paper, we study the performance of a hierarchical cellular network that allows the queueing of both overflow slow‐mobility calls (from the lower layer microcells) and macrocell handover fast‐mobility calls that are blocked due to lack of free resources at the macrocell. Further, to accurately represent the wireless user behaviour, the impact of call repeat phenomenon is considered in the analysis of new call blocking probability. Performance analysis of the hierarchical cellular structure with queueing and call repeat phenomenon is performed using both analytical and simulation techniques. Numerical results show that queueing of calls reduces forced call termination probability and increases resource utilization with minimal call queueing delay. It is also shown that ignoring repeat calls leads to optimistic estimates of new call blocking probability especially at high offered traffic. Copyright © 2005 John Wiley & Sons, Ltd.     

An elastic resource allocation algorithm enabling wireless network virtualization

Following the wired network virtualization, virtualization of wireless networks becomes the next step aiming to provide network or infrastructure providers with the ability to manage and control their networks in a more dynamic fashion. The benefit of the wireless mobile network virtualization is a more agile business model where virtual mobile network operators (MNOs) can request and thus pay physical MNOs in a more pay‐as‐you‐use manner. This paper presents some resource allocation algorithms for joint network virtualization and resource allocation of wireless networks. The overall algorithm involves the following two major processes: firstly, to virtualize a physical wireless network into multiple slices, each representing a virtual network, and secondly, to carry out physical resource allocation within each virtual network (or slice). In particular, the paper adopts orthogonal frequency division multiplexing (OFDM) as its physical layer to achieve more efficient resource utilization. Therefore, the resource allocation is conducted in terms of sub‐carriers. Although the motivation and algorithm design are based on IEEE 802.16 or WiMAX networks, the principle and algorithmic essence are also applicable to other OFDM access‐based wireless networks. The aim was to achieve the following design goals: virtual network isolation and resource efficiency. The latter is measured in terms of network throughput and packet delivery ratio. The simulation results show that the aforementioned goals have been achieved. Copyright © 2012 John Wiley & Sons, Ltd.     

L-RUBI: An efficient load-based resource utilization algorithm for bi-partite scatternet in wireless personal area networks

Recently, much of the wireless personal area network (WPAN) research concerns network protocols, scheduling, and security challenges but the major issue of resource utilization has been very rarely investigated. The design of resource sharing in a network gets more attention when the number of users increases. While optimizing performance, resource utilization plays a critical role. In this paper, the numerical performance of a wireless resource utilization algorithm for a bi-partite scatternet is presented. This algorithm is focused to enhance the bandwidth allocation and power utilization of wireless scatternets. Every node can communicate with a single neighbor at a time with minimum resources. Finally, the performances of the RUBI algorithm are shown. This algorithm is compared with the existing algorithms such as the load adaptive scheduling algorithm and pseudorandom coordinated scheduling scheme in terms of various parametric metrics like reliability, throughput, collision probability, transmission probability, and signal-to-noise ratio (SINR). The proposed L-RUBI achieves 93.4% of reliability, 93.6% of transmission probability, 91.4% of throughput, 76.8% of collision performance, and 72.2% SINR.