Content caching and spectrum allocation joint design method for NOMA wireless video multicast
A content caching and wireless video technology, applied in the computer field, can solve problems such as limiting the efficiency of wireless resource utilization
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[0019] Below in conjunction with accompanying drawing and specific embodiment, the present invention is further described, specifically:
[0020] Application scenario system model description;
[0021] Model the content caching and frequency spectrum allocation method for NOMA wireless video multicast proposed by the present invention and raise questions.
[0022] The proposed joint resource optimization problem is decoupled into two sub-problems and a dynamic programming algorithm is designed to solve them.
[0023] The proposed scheme is simulated and evaluated.
[0024] 1 system model
[0025] Such as figure 1 As shown, a wireless cellular network scenario where one base station serves K multicast groups is considered. The number of base station cache resources and spectrum resources are denoted as C and f respectively, and the transmit power of the base station is denoted as P. In this scenario, multicast wireless video hierarchical buffering is performed to users in ...
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