Cognitive Radio Networks: Efficient Resource Allocation in Cooperative Sensing, Cellular Communications, High-Speed Vehicles, and Smart Grid Hardcover

Tao Jiang, Zhiqiang Wang, Yang Cao

  • 出版商: CRC
  • 出版日期: 2015-04-08
  • 售價: $4,500
  • 貴賓價: 9.5$4,275
  • 語言: 英文
  • 頁數: 148
  • 裝訂: Hardcover
  • ISBN: 1498721133
  • ISBN-13: 9781498721134
  • 相關分類: Radio-networks
  • 立即出貨 (庫存=1)

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商品描述

Resource allocation is an important issue in wireless communication networks. In recent decades, cognitive radio-based networks have garnered increased attention and have been well studied to overcome the problem of spectrum scarcity in future wireless communications systems. Many new challenges in resource allocation appear in cognitive radio-based networks. This book focuses on effective resource allocation solutions in several important cognitive radio-based networks, including opportunistic spectrum access networks, cooperative sensing networks, cellular networks, high-speed vehicle networks, and smart grids.

Cognitive radio networks are composed of cognitive, spectrum-agile devices capable of changing their configuration on the fly based on the spectral environment. This capability makes it possible to design flexible and dynamic spectrum access strategies with the purpose of opportunistically reusing portions of the spectrum temporarily vacated by licensed primary users. Different cognitive radio-based networks focus on different network resources, such as transmission slots, sensing nodes, transmission power, white space, and sensing channels.

This book introduces several innovative resource allocation schemes for different cognitive radio-based networks according to their network characteristics:

  • Opportunistic spectrum access networks – Introduces a probabilistic slot allocation scheme to effectively allocate the transmission slots to secondary users to maximize throughput
  • Cooperative sensing networks – Introduces a new adaptive collaboration sensing scheme in which the resources of secondary users are effectively utilized to sense the channels for efficient acquisition of spectrum opportunities
  • Cellular networks – Introduces a framework of cognitive radio-assisted cooperation for downlink transmissions to allocate transmission modes, relay stations, and transmission power/sub-channels to secondary users to maximize throughput
  • High-speed vehicle networks – Introduces schemes to maximize the utilized TV white space through effective allocation of white space resources to secondary users
  • Smart grids – Introduces effective sensing channel allocation strategies for acquiring enough available spectrum channels for communications between utility and electricity consumers

商品描述(中文翻譯)

資源分配是無線通訊網絡中的重要問題。在近幾十年中,基於認知無線電的網絡引起了越來越多的關注,並且已經得到了充分的研究,以克服未來無線通信系統中頻譜稀缺的問題。在基於認知無線電的網絡中出現了許多新的資源分配挑戰。本書專注於幾個重要的基於認知無線電的網絡中的有效資源分配解決方案,包括機會式頻譜訪問網絡、合作感知網絡、蜂窩網絡、高速車輛網絡和智能電網。

認知無線電網絡由具有認知和頻譜靈活性的設備組成,能夠根據頻譜環境即時更改配置。這種能力使得設計靈活且動態的頻譜訪問策略成為可能,目的是通過機會性地重用被許可的主要用戶暫時空出的頻譜部分。不同的基於認知無線電的網絡關注不同的網絡資源,例如傳輸時隙、感知節點、傳輸功率、空白頻譜和感知通道。

本書根據不同的基於認知無線電的網絡特性,介紹了幾種創新的資源分配方案:

- 機會式頻譜訪問網絡:引入一種概率性時隙分配方案,以有效地將傳輸時隙分配給次級用戶,以最大化吞吐量。
- 合作感知網絡:引入一種新的自適應協作感知方案,有效利用次級用戶的資源,對通道進行感知,以高效地獲取頻譜機會。
- 蜂窩網絡:引入一個基於認知無線電輔助合作的下行傳輸框架,將傳輸模式、中繼站和傳輸功率/子通道分配給次級用戶,以最大化吞吐量。
- 高速車輛網絡:引入方案,通過有效分配白空間資源給次級用戶,以最大化利用的電視白空間。
- 智能電網:引入有效的感知通道分配策略,為公用事業和電力消費者之間的通信獲取足夠的可用頻譜通道。