Accession Number:

ADA429034

Title:

MIMO Based Eigen-Space Spreading

Descriptive Note:

Final rept. 17 May-24 Nov 2004

Corporate Author:

PULSAR COMMUNICATION SYSTEMS ENCINO CA

Personal Author(s):

Report Date:

2004-11-24

Pagination or Media Count:

25.0

Abstract:

In this work, Pulsar leveraged the multiple input multiple output MIMO concept to achieve anti-jamming and low probability of detectioninterception AJLPILPD communications. The proposed work randomizes the signal in space, as well as time and frequency. Space randomization will be achieved by transmitting on the spatial singularities of the MIMO matrix channel. Combination of this powerful technique with orthogonal frequency division multiplexing OFDM based modulation and traditional time and frequency spreading techniques results in a highly secure mode of communications. The results show that for LPD, almost 20 dB reduction in overall TX power can be achieved for the same performance at 5 outage when going from a single antenna system to an 8 antenna system. Moreover, our results show that the eigen vector spreading concept is complementary and additive to conventional spread spectrum techniques such as frequency hopped spread spectrum and direct sequence spread spectrum.

Subject Categories:

  • Theoretical Mathematics
  • Countermeasures
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE