Peak-to-average ratio (PAR) of a signal determines the required backoff from the Power Amplifier (PA) compression point to keep clipping and hence spectral regrowth to within acceptable limits such that the maximum required power can be transmitted with the least backoff. A high PAR puts stringent requirements on the PA and reduces the efficiency in that a higher input backoff is needed to ensure that the signal peaks do not experience significant distortion due to the PA non-linearity. This paper analyzes and compares the PAR of the forward link (downlink) of a IS-856 (cdma2000 1xEV) system with that of IS-95 system.
Did you find this white paper useful?
24 out of 50 users found this white paper useful
Related white papers
gpsOne Case Study: KDDI
KDDI is Japan's second largest communications carrier, providing voice, data and wireless services around the world. Consumers want position information when they're lost, maps and point-to-point directions for hotels, restaurants...
Next-Gen Base Stations: Critical Cornerstones of New Wireless Networks
After a long gestation and difficult birth, third-generation wireless is finally here. More than two dozen vendors now offer base stations for CDMA2000 and GPRS/EDGE/UMTS, and they're not collecting dust,...
Forming a Community Telco Case Study - Wodonga CANDP
Wodonga is one of Australia's fastest growing regional centres. Frustrated by the reluctance of alternative carriers to invest in the area, the ICT Committee decided to establish a telecommunications company...
Qualcomm Case Study: ATCO Gas
ATCO Gas is a utility company and a member of the ATCO Group of Companies that distributes natural gas across 85 percent of the province of Alberta, Canada. ATCO Gas...
Qualcomm Case Study: Broward Sheriff's Office
The Child Protective Investigations Section CPIS) of Florida's Broward County Sheriff's Office investigates allegations of abuse and neglect against children. CPIS needed fast Internet connectivity with broadband coverage for investigators...
Qualcomm Case Study: CSX Corporation
CSX Corporation owns and operates the largest rail transportation system in the eastern United States. CSX was looking to improve the efficiency of its railroad operations and the communication with...
Qualcomm Case Study: Camping Companies
Camping Companies is the largest automobile repossession firm in the United States. Camping Companies wanted to reduce the amount of unnecessary hours and labor workers spent on administrative tasks in...
