US Patent No. 9,578,604

POWER ALLOCATION METHOD FOR TRANSMITTING SCALABLE VIDEO OVER MIMO SYSTEM


Patent No. 9,578,604
Issue Date February 21,2017
Title Power Allocation Method For Transmitting Scalable Video Over Mimo System
Inventorship Xiang Chen, Kaohsiung (TW)
Jenq-Neng Hwang, Kaohsiung (TW)
Chung-Nan Lee, Kaohsiung (TW)
Assignee NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung (TW)

Claim of US Patent No. 9,578,604

1. A power-allocation method for transmitting scalable video over a MIMO system includes:
encoding a video sequence into L layers;
performing modulation and coding schemes (MCSs) to the layers and generating a bit error rate or a symbol error rate respectively
for each of the layers after MCSs procedure;

decomposing an optimized power allocation problem into L sub-power allocation problems and obtaining a candidate power allocation
solution set by solving each of the sub-power allocation problems respectively based on the bit error rate or the symbol error
rate of each of the layers and derivative of the bit error rate or the symbol error rate of each of the layers, wherein each
of the sub-power allocation problems allows up to l(l=1, 2, . . . , L) layers to proceed transmission respectively; and

selecting the candidate power allocation solution set with a largest quality of experiences as the optimized power allocation
solution of the scalable video transmission over the MIMO system, wherein the expression of the optimized power allocation
of the scalable video transmission over the MIMO system is:

wherein p* is the optimized power allocation of the scalable video transmission over the MIMO system, uk is utility of the kth layer, fk(•) is the frame correction rate of the kth layer, and pl* is the candidate power allocation solution set of the lth sub-power allocation problem.