根据有无固定基础设施，无线局域网又可分为BSS (Basic SERVICE Set)和IBSS (Independent Basic SERVICE Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。 在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。
标签：
上传时间： 2013-12-19
上传用户：顶得柱
这个应用程序的总体思路其实很简单，就是利用KSoap2和远端Web SERVICE交互之后，下载3gp媒体文件流，然后播放。对RMS记录存储的封装模式以及对资源的调用方式，则参照了索爱公司的BlueGammon游戏代码。
标签： 应用程序
上传时间： 2016-03-25
上传用户：zhenyushaw
The aim of this book is to provide the reader with a thorough grounding in the General Packet Radio SERVICE – GPRS.The introduction contains a basic review of GSM to ensure that the reader is clear on the main aspects of circuit switched technology, as this will make the differences and advantages of packet oriented GPRS both more apparent and easier to understand.
标签： grounding the thorough General
上传时间： 2016-03-30
上传用户：康郎
本文从英文C–FAQ (2004 年7 月3 日修订版) 翻译而来。本文的中文版权为 朱群英和孙云所有。本文的内容可以自由用于个人目的，但是不可以未经许可出 版发行。英文版权为Steve Summit 所有，详情见下面的英文版权说明。 The English version of this FAQ list is Copyright 1990-2004 by Steve Summit. Content from the book 《C Programming FAQs: Frequently Asked Questions》is made available here by permission of the author and the publisher as a SERVICE to the community. It is intended to complement the use of the published text and is protected by international copyright laws. The on-line content may be accessed freely for personal use but may not be republished without permission.
上传时间： 2013-12-19
上传用户：LouieWu
这是一个网管程序，底层通过web SERVICE和其他程序通讯，包含了配置、监控、统计、等功能
标签： 程序
上传时间： 2014-01-26
上传用户：缥缈
Acegi认证授权主要基于两大技术，一是Filter机制，二是AOP的拦截机制。通过FilterSecurityInterceptor很好地实现了对URI的保护，通过MethodSecurityInterceptor实现了对SERVICE的方法的拦截保护，通过ACL 实现了对prototype类型的Object进行过滤和保护。
上传时间： 2013-12-03
上传用户：lvzhr
3rd Generation Partnership Project Technical Specification Group Terminals Technical realization of the Short Message SERVICE
标签： Technical Specification Partnership realization
上传时间： 2014-01-24
上传用户：1966640071
linux下用C语言写的聊天程序！/*BUG and NOTE: Not join protect to Shared Memory Segments,example Semaphore Arrays. Not check the parameters validity. When transmit may be error. If the client program no right exit,others cannot know,the SERVICE program shouldbe check the client program whether exist timing. The program when exit(), it do not delete the Shared Memory Segments,you maybe use atexit() but the program have some processes. When one process is exit(),others is continue. The SERVICE program s action is few. And so on. */
标签： Semaphore Segments example protect
上传时间： 2014-01-25
上传用户：xhz1993
Hospital queue is a regular met are very familiar with the phenomenon. It every day one way or another in the form in front of us. For example, patients to hospitals, pharmacies dispensing to patients, patients with transfusion to the infusion room, often need wait To some kind of SERVICE.
标签： phenomenon Hospital familiar regular
上传时间： 2013-12-26
上传用户：四只眼
uddi注册中心，可用于web SERVICE 开发。便于查找服务。
标签： uddi
上传时间： 2014-01-02
上传用户：zyt
