Patent ID: 9578604
Date: 2017-02-21
CPC Classifications: H04B,H04L,H04N,H04W

Claim:
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, u k is utility of the k th layer, {tilde over (f)} k (•) is the frame correction rate of the k th layer, and p l * is the candidate power allocation solution set of the l th sub-power allocation problem.