UnderWater+SDN論文之二

---- Software-defined underwater acoustic networking platform and its applications
source: Ad Hoc Networks 2015網絡

acoustic as the primary modality. challenge: highly limited bandwidth, severe fading, and long propagation delay. (many MAC protocols and PHY layer techniques proposed)
This paper: present a research platform that allows developers to easily implement and compare their protocols in an underwater network and configure them at runtime.
software defined Underwater Acoustic Networking plaTform (UANT)架構

問題:水下傳輸帶寬小、傳輸速率小、收發節點的能量小、收發的出錯機率大、多徑、噪音等各類問題,形成構建水下網絡都很是困難。
論文:在以前的論文工做的基礎上,一、增長應用和協議的實現、討論頻道分配協議的細節描述;二、實現並驗證了頻道分配協議和時間同步協議。app

背景:GNU Radio and USRP操作系統

TinyOS —— 傳感網絡操做系統,NesC 語言, —— TOSSIM設計

UANT系統架構: 物理層、MAC 層、應用層、頻道分配協議orm

實現: 實現的設備;對比實驗:退避間隔、最小退避時間、衝突率。同步

思考:水下網絡,本質上也是一種無線傳感網絡,比陸地的無線傳感網絡條件更惡劣。所以,mac層協議設計、退避機制、衝突避免、時間同步、節能等,傳統無線傳感網絡ad hoc考慮關注的點,在水下網絡都是重點設計的部分。it

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