Browse Prior Art Database

A MAXIMAL-RATIO TIME DIVERSITY DATA DECODER

IP.com Disclosure Number: IPCOM000007289D
Original Publication Date: 1994-Oct-01
Included in the Prior Art Database: 2002-Mar-12
Document File: 5 page(s) / 326K

Publishing Venue

Motorola

Related People

Authors:
Brad Hiben Don Newberg James Butler

Abstract

Range and efficiency are important measures of radio data system performance. Normally, range is improved by use of stronger forward error correc- tion codes. This degrades the efficiency of the radio data system because more system capacity is devoted to parity information for the stronger error correc- tion codes. Efficiency can be improved by using higher rate, i.e., weaker, error correction codes and accepting a decrease in the coverage range. This invention uses maximal-ratio time diversity to simultaneously improve the efficiency and coverage range obtainable in a radio data system.