亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

Nonconvex

  • 傳感器網絡中基于到達時間差有效的凸松弛方法的穩健定位

    We consider the problem of target localization by a network of passive sensors. When an unknown target emits an acoustic or a radio signal, its position can be localized with multiple sensors using the time difference of arrival (TDOA) information. In this paper, we consider the maximum likelihood formulation of this target localization problem and provide efficient convex relaxations for this Nonconvex optimization problem.We also propose a formulation for robust target localization in the presence of sensor location errors. Two Cramer-Rao bounds are derived corresponding to situations with and without sensor node location errors. Simulation results confirm the efficiency and superior performance of the convex relaxation approach as compared to the existing least squares based approach when large sensor node location errors are present.

    標簽: 傳感器網絡

    上傳時間: 2016-11-27

    上傳用戶:xxmluo

  • Utility Maximization in Nonconvex Wireless Systems

    Once upon a time, cellular wireless networks provided two basic services: voice telephony and low-rate text messaging. Users in the network were separated by orthogonal multiple access schemes, and cells by generous frequency reuse patterns [1]. Since then, the proliferation of wireless services, fierce competition, andthe emergenceof new service classes such as wireless data and multimediahave resulted in an ever increasing pressure on network operators to use resources in a moreefficient manner.In the contextof wireless networks,two of the most common resources are power and spectrum—and, due to regulations, these resources are typically scarce. Hence, in contrast to wired networks, overprovisioning is not feasible in wireless networks.

    標簽: Maximization Nonconvex Wireless Utility Systems in

    上傳時間: 2020-06-01

    上傳用戶:shancjb

主站蜘蛛池模板: 沾化县| 嘉兴市| 赤城县| 杨浦区| 武宁县| 长岛县| 溧阳市| 大埔县| 延寿县| 韩城市| 绩溪县| 南丹县| 萨迦县| 潮安县| 河津市| 吉林市| 融水| 通渭县| 喀喇沁旗| 荆门市| 临邑县| 忻城县| 东阿县| 皮山县| 旺苍县| 萍乡市| 博爱县| 齐齐哈尔市| 老河口市| 北辰区| 禄劝| 冕宁县| 庐江县| 尉犁县| 茌平县| 五河县| 凉城县| 全州县| 曲水县| 西安市| 沽源县|