Traffic Management in Wireless ATM Networks

NCR-9714702、Jaime B.金，加州州立大学，北岭，和NCR-9714700，W。圣何塞州立大学的Melody Moh致力于研究无线ATM网络中的流量管理。 它包括以下两个阶段： 第一阶段：基本交通管制 在这个初始阶段，我们将集中讨论无线ATM网络的两个基本业务管理问题： 1. 接纳控制 我们建议开发的准入控制方案，可以提供一个高度的QoS保证的多媒体业务进行微蜂窝，无线ATM网络。 所提出的方案还可以适应不断变化的网络条件，不断监测当前的网络流量负载和调整预留带宽的量。 2.组播流量控制 我们提出了两个新的分支点控制机制：ISQ（忽略慢请求）和WS（加权和）计划。 这两种方案可以很容易地应用到现有的多播ABR流量控制机制，其中大多数采用LSQ（听最慢的请求）原则。 我们还提出了两个完整的多播流量控制机制的非实时流量，每个包括特定的控制在交换机，分支点，目的地，以及源。 第二阶段：综合及扩展基本交通管制 这一阶段的重点是整合基本的交通控制机制，以实现一个完整的交通管理方案的最终目标。 为此，第一阶段基本交通控制项目的扩展将按以下方向进行： 1.多播连接的端到端准入控制2.实时流量的组播流量控制3.通过结合准入控制， 动态带宽分配和流量控制 对于这两个阶段的每个子项目，我们已经确定了研究问题的调查，并提出了分析和模拟方法。 我们相信，拟议的研究是至关重要的下一代宽带无线网络。

This research collaboration project between NCR-9714702, Jaime B. Kim, California State University, Northridge, and NCR-9714700, W. Melody Moh, San Jose State University, aims to study traffic management in wireless ATM networks. It includes the following two phases: PHASE 1: BASIC TRAFFIC CONTROL In this initial phase, we will focus on two basic traffic management issues for wireless ATM networks: 1. Admission Control We propose to develop admission control schemes which can provide a high degree of QoS guarantee for the multimedia traffic carried in micro-cellular, wireless ATM networks. The proposed schemes can also adapt to the changing network conditions by constantly monitoring current network traffic load and adjusting the amount of reserved bandwidth. 2. Multicasting Flow Control We propose two new branch-point control mechanisms: the ISQ (Ignore the Slow reQuests) and the WS (Weighted Sum) schemes. Both schemes can be readily applied to the existing multicasting ABR flow control mechanisms, most of which adopt the LSQ (Listen to the Slowest reQuests) principle. We also propose two complete multicasting flow control mechanisms for non-real-time traffic, each includes specific controls at switches, branch-points, destinations, as well as the source. PHASE 2: INTEGRATED AND EXTENSION OF BASIC TRAFFIC CONTROL This phase will focus on integration of basic traffic control mechanisms to achieve the ultimate goal of a complete traffic management scheme. For this purpose, extensions on basic traffic control projects of Phase 1 will be carried out in the following directions: 1. End-to-end admission control for multicasting connections 2. Multicasting flow control for real-time traffic 3. Integrated traffic management by combining admission control, dynamic bandwidth allocation, and flow control For each of the sub-projects in both phases, we have identified research issues for investigation and presented analytical and simulation me thods. We believe that the proposed research is vital to the next generation of broadband wireless networks.