Secure communications in local multipoint distribution service (LMDS) networks

Author

Anastasopoulos, Markos P. ; Petraki, Dionysia K. ; Chen, Hsiao-Hwa

Author_Institution

Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece

Volume

8

Issue

11

fYear

2009

fDate

11/1/2009 12:00:00 AM

Firstpage

5400

Lastpage

5403

Abstract

The transmission of confidential information over LMDS networks is investigated in the present paper from an information-theoretic standpoint. The major factor impairing the link performance at these networks is rain attenuation, a physical phenomenon exhibiting both spatial and temporal variation. Based on an accurate channel modeling, analytical expressions of the probability of non-zero secrecy capacity and the outage probability for this type of networks are provided, giving for the first time an information-theoretic approach of the problem of secure transmission for LMDS networks. Useful conclusions are drawn through extended numerical results suggesting the increase of operational frequency and the use of more directional antennas to improve security in transmission of confidential messages for this type of networks.

Keywords

cellular radio; directive antennas; radiowave propagation; telecommunication security; LMDS networks; channel modeling; confidential messages; directional antennas; information theory; local multipoint distribution service networks; nonzero secrecy capacity; outage probability; rain attenuation; secure communications; Attenuation; Capacity planning; Communication system security; Directional antennas; Frequency; Information analysis; Information security; National security; Rain; Satellites; Secrecy capacity, secure communications, LMDS networks, rain fading.;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.081346

Filename

5336760