Cellular heterogeneous network resource distribution method

Abstract

The invention relates to a cellular heterogeneous network resource distribution method, belonging to the wireless communication technology field. The method comprises: step 1, determining an initial bandwidth distribution strategy based on a customer service demand, notated by b=[b1,b2, ...bN], wherein sigma summation of <N> <i=1> bi=B; step 2, determining MBS and ith FBS, notated by FBSi, wherein the largest transmission rate of a shared frequency spectrum portion is notated by: psi=[R<max> <m,1>, R<max> <m,2>,..., R<max> <m,N>]; step 3, modeling a bankruptcy game model, and determining an MBS and FBS distribution rate; step 4, optimizing and determining a local bandwidth and a power distribution strategy based on an FBS utility function, notated by b*=[b<*>1, b<*>2, ..., b<*>N] and P*=[p<*>1, p<*>2, ..., p<*>N]; and step 5, repeating the steps until an algorithm converges, thereby realizing combined bandwidth and power optimal distribution. The method can effectively guarantee heterogeneous cellular network macro customer and household base station base station customer QoS demands, realize frequency spectrum resource sharing, and improve a frequency spectrum utilization rate and network comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to the technical field of resource allocation of cellular heterogeneous networks, and relates to a resource allocation method of cellular heterogeneous networks. Background technique [0002] With the rapid development of wireless communication technology, the widespread application of a new generation of communication intelligent terminals and the continuous emergence of rich and diverse data services, user service requirements pose severe challenges to traditional cellular networks. Heterogeneous cellular network technology introduces other communication methods, such as pico base stations, home base stations, and relay stations, within the coverage of traditional macro cells, which can effectively solve the problem of blind area coverage, reduce the load of macro cells, and improve user service performance. At the same time, it can effectively reduce operating cost...

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for allocating resources in a cellular heterogeneous network, the method is aimed at a cellular heterogeneous network comprising a macro base station (MBS) and a plurality of home base stations (FBSs), and the MBS satisfies the needs of macro cellular users Under the requirement of the minimum transmission rate (MUE), its spectrum can be divided and shared with each FBS, but in the network scenario where the spectrum cannot be shared between FBSs, how to realize the allocation of spectrum and transmission power of FBSs, a two-stage resource allocation algorithm is proposed, specifically In order to allocate the shared spectrum transmission rate between MBS and FBSs based on the bankruptcy game, and then realize the local optimal allocation of bandwidth and power based on FBS utility function optimization, repeat the above steps until the algorithm converges

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