TITLE:
Adaptive Power Saving Receiver for DVB-H Exploiting Adaptive Modulation and Coding
AUTHORS:
Tallal Osama ELSHABRAWY, Sherif Hassan Abdel WAHED
KEYWORDS:
Broadcast, DVB-H, Power Consumption, Power Saving, Adaptive Modulation and Coding, AMC, RCPC Codes
JOURNAL NAME:
International Journal of Communications, Network and System Sciences,
Vol.3 No.2,
March
1,
2010
ABSTRACT: Broadcasting live digital TV to a small battery-powered handheld device is very challenging. One of the most promising technologies to provide such services is DVB-H (Digital Video Broadcasting over Handheld). Power consumption has always been one of the most crucial challenges for handheld devices. In this paper, a novel Adaptive Modulation and Coding (AMC) framework is proposed for DVB-H systems to address the challenging problem of power consumption. The proposed power saving AMC framework operates by rearranging the transmitted frames in a pre-defined pattern. The adaptive receiver selects the appropriate modulation technique and/or code rate, one that achieves a target Bit Error Rate (BER), and then could be switched off and/or powered down resulting in significant potential for saving of reception and processing powers. Simulation of the DVB-H system under the proposed framework proved that the proposed power saving AMC framework is capable of achieving power saving up to 71.875% in COST207 Typical Urban 6-paths (TU6) channel. Furthermore, numerical analysis for the power saving potential and BER performance of the proposed framework is performed for both flat Rayleigh channel and multipath TU6 channel.