DocumentCode :
3005076
Title :
A Relative Ad hoc Localization Scheme using Optical Wireless
Author :
Jayasri Akella ; Yuksel, Murat ; Kalyanaraman, Shivkumar
Author_Institution :
Electr. Comput., & Syst. Eng.,, Rensselaer Polytech. Inst., Troy, NY, USA
fYear :
2007
fDate :
7-12 Jan. 2007
Firstpage :
1
Lastpage :
8
Abstract :
Directional communication (for example, using directional antennas or free-space optics) has the potential to dramatically increase capacity reuse in multi-hop wireless mesh and ad hoc networks. What is less appreciated is that directional communications can also simplify network layer functions. In this paper, we show how directionality (combined with ranging) can be used to construct a scalable, fully distributed localization system and assign "relative" coordinates to each node (without the need for GPS) that can be used by highly scalable geographic routing systems. We show that range and orientation-based localization schemes (ROL) scale better than range-only or orientation-only localization schemes (e.g., triangulation) for such applications. We present simulations studying scalability, effect of errors (both range and directionality) and compare performance with triangulation methods. Finally, we discuss how such an ROL scheme can be realized with optical wireless nodes, based upon our ongoing efforts to build ad hoc and meshed networks using both FSO and RF technologies.
Keywords :
ad hoc networks; directive antennas; optical communication; ROL scheme; ad hoc localization; directional antennas; directional communication; free-space optics; multi-hop wireless mesh; optical wireless; relative coordinates; scalable geographic routing systems; triangulation methods; Aerodynamics; Costs; Global Positioning System; Optical fiber networks; Optical sensors; Peer to peer computing; Routing; Scalability; Vehicle dynamics; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communication Systems Software and Middleware, 2007. COMSWARE 2007. 2nd International Conference on
Conference_Location :
Bangalore
Print_ISBN :
1-4244-0613-7
Type :
conf
DOI :
10.1109/COMSWA.2007.382580
Filename :
4268004
Link To Document :
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