Optimal buffer-constrained bit allocation using marginal analysis

In this paper we study the bit allocation problem under multiple rate constraints. This problem has been arisen in many practical situations, such as optimal image and video quantization, buffer-constrained multimedia transmission, joint source channel coding and unequal error protection. To solve the bit allocation problem under both total rate budget and maximum buffer size constraints, Lagrangian-based iterative technique can be used. The bit allocation problem are reexamined in this paper under multiple rate constraints, and propose an efficient algorithm based on marginal analysis to solve the rate-distortion optimization problem under both rate and buffer constraints. The paper has used optimal quantization and joint source channel coding based rate allocation.