超宽带无线通信技术及其应用

本文介绍了超宽带技术的基本概念、目前主要的实现方案、国际上超宽带技术的规范化和标准化工作,以及超宽带技术的应用.     

超宽带无线通信技术及其应用

本文介绍了超宽带技术的基本概念、目前主要的实现方案、国际上超宽带技术的规范化和标准化工作,以及超宽带技术的应用。     

Distributed wireless quantum communication networks with partially entangled pairs＊Distributed wireless quantum communication networks with partially entangled pairs＊Distributed wireless quantum communication networks with partially entangled pairs＊Distributed wireless quantum communication networks with partially entangled pairs

Wireless quantum communication networks transfer quantum state by teleportation. Existing research focuses on maximal entangled pairs. In this paper, we analyse the distributed wireless quantum communication networks with partially entangled pairs. A quantum routing scheme with multi-hop teleportation is proposed. With the proposed scheme, is not necessary for the quantum path to be consistent with the classical path. The quantum path and its associated classical path are established in a distributed way. Direct multi-hop teleportation is conducted on the selected path to transfer a quantum state from the source to the destination. Based on the feature of multi-hop teleportation using partially entangled pairs, if the node number of the quantum path is even, the destination node will add another teleportation at itself. We simulated the performance of distributed wireless quantum communication networks with a partially entangled state. The probability of transferring the quantum state successfully is statistically analyzed. Our work shows that multi-hop teleportation on distributed wireless quantum networks with partially entangled pairs is feasible,     

浅淡无线高清传输技术与IPTV

无线与高清电视的结合是今后家庭影院的一个主要的发展方向,也将成为厂商和消费者所关注的焦点。本文介绍了无线高清传输技术的产生特点,探讨了无线高清传输技术的发展趋势。相信在不久的将来,广大的数字家庭用户将可以享受到应用无线高清传输技术带来的便捷。     

TC/MAX码捕获准则及其在超宽带系统中的应用

针对码捕获中门限设置的复杂性,提出了一种过门限捕获与选取最大值相结合的码捕获准则(简称TC/MAX准则),并将此准则应用于直扩超宽带通信系统码的捕获。理论分析和计算机仿真表明,采用TC/MAX准则可获取比过门限捕获更好的捕获性能。     

超宽带室内信道模型

信道模型是无线通信系统研究和设计的基础。超宽带技术是无线通信领域的一种革命性新技术。本文在一般无线通信信道模型的基础上,介绍了超宽带无线通信信道模型,给出了△-K模型、S-V模型、以及IEEE 802．15．3a模型等典型UWB信道模型的建模方法和特性,讨论了超宽带信道模型的进一步研究方向。     

用于多信道无线网络的综合链路速率分配算法

This paper presents a link allocation and rate assignment algorithm for multi-channel wireless networks. The objective is to reduce network conflicts and guarantee the fairness among links. We first design a new network model. With this network model, the multi-channel wireless network is divided into several subnets according to the number of channels. Based on this, we present a link allocation algorithm with time complexity O(l2 ) to allocate all links to subnets. This link allocation algorithm adopts conflict matrix to minimize the network contention factor. After all links are allocated to subnets, the rate assignment algorithm to maximize a fairness utility in each subnet is presented. The rate assignment algorithm adopts a near-optimal algorithm based on dual decomposition and realizes in a distributed way. Simulation results demonstrate that, compared with IEEE 802. 11b and slotted seeded channel hopping algorithm, our algorithm decreases network conflicts and improves the network throughput significantly.     

线性卷积与循环卷积等价关系及水声通信应用

线性卷积与循环卷积的等价关系是"数字信号处理"课程的重点内容之一.在计算循环卷积时,通常利用线性卷积的周期延拓来计算周期卷积,再对周期卷积取主值区间得到循环卷积.本文结合水声通信这一海洋信号处理领域的研究热点之一,针对水声通信中最新使用的零填充正交频分复用系统,介绍基于线性卷积的循环卷积计算方法及其具体应用,并通过实例对该方法进行演示.     

海洋信息工程专业建设与人才培养改革

东南大学信息科学与工程学院,积极响应国家建设海洋强国的号召,主动申报建设海洋信息工程本科新专业,为国家和社会培养急需紧缺的海洋建设与开发人才。学校建设海洋信息工程专业拥有厚重的历史积淀和强势的学科优势,实验实践条件完备、人才培养方案设置科学、课程体系建设合理,为海洋信息工程专业的人才培养提供了坚实基础。     

电子信息大类培养模式改革与探索

本文以东南大学为例介绍了电子信息大类概况、大类培养的特色和优势、导师制管理办法以及大类分流方案。电子信息类2019级分流结果显示，大类招生赋予了学生进入高校后二次选择专业的机会，但同时也给大类的部分冷门专业带来了生源质量方面的挑战。本文还着重分析了大类招生背景下学生管理方面的问题，并对托管学院和分流学院提出了“协同、沟通、共享”三点机制，促进学生在分流后能更好地融入学习和生活环境。