Dynamic multi-access business distributing method in isomerism cooperative network

A collaborative network and multi-access technology, applied in network traffic/resource management, network planning, electrical components, etc., can solve problems that affect the performance of business distribution and do not consider the rate of multi-mode terminals for business bursts

Inactive Publication Date: 2015-04-08
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the relevant literatures do not consider the impact of business burst and multi-mode terminal rate limitation in the cooperative network, which affects the performance of business offloading to a certain extent.

Method used

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  • Dynamic multi-access business distributing method in isomerism cooperative network
  • Dynamic multi-access business distributing method in isomerism cooperative network
  • Dynamic multi-access business distributing method in isomerism cooperative network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Please refer to figure 1 , the present invention limits and smoothes the suddenness of business by adding a token funnel in the wide area network, considering such as figure 1 In the shown heterogeneous network scenario where WWAN and WPAN cooperate, there are N different WWANs and one WPAN composed of multiple MMTs. For convenience of description, different WWANs are represented as RAN={RAN1, RAN2,...,RANN}, WPANs are represented as RANN+1, and different MMTs are represented as MMT={MMT1,MMT2,...,MMTM}. In this heterogeneous network, assuming that there is data to be transmitted from the WWAN to MMT1, the input service flow can be divided into multiple service sub-flows, which are respectively transmitted through different WWAN i,i∈{1,...,N} to the The associated MMT j, j∈{1,...,M}, and then different MMTs in the WPAN cooperate to transmit, and the split data stream finally reaches MMT1, where sub-stream aggregation and recovery are realized at MMT1, thus completing e...

Embodiment 2

[0089] Please refer to figure 2 , this paper considers the token funnel-based shunting optimization problem. The speed at which the token is generated is the speed of the bit stream that is allowed to enter the network is r b / s, and the capacity of the funnel is W bit. Then the average time to transmit a packet is μ=r / L. is the time that tokens can be accumulated, then the average delay of packets passing through the token funnel system is [8]:

[0090] T = 1 μ - λ e - c ( μ - λ ) - - - ( 1 )

[0091] The time c that the token can accumulate is related to the transmission rate that the terminal can provide (c≤μ N+1 ).

...

Embodiment 3

[0126] Dual-based distributed solution method

[0127] For the solution of the optimization problem (P), the Lagrangian function is used to transform:

[0128] L ( λ i , v ) = Σ i = 1 N 1 μ i - λ i e - ...

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Abstract

A dynamic multi-access business distributing method in an isomerism cooperative network comprises the following steps of 1 building a wireless wide area network (WWAN) composed of N different (RAT); 2 transmitting a data packet, enabling a length obeying mean value to be exponential distribution of An Lbit, transmitting a mean time mu=r / L buffer area of a package to accumulate time and the data package, and mean time delay of the data package passing through a WWAN system is ; 3 as for a link, enabling the MMT1 to b directly connected with the RAT1, and enabling the transmission time delay to be; and 4 building a model based on a distribution method of a tablet hopper.

Description

[0001] The invention belongs to the technical field of wireless communication networks, and mainly limits and smooths the burstiness of services by adding a token funnel in the wide area network, so that the forwarding services of multi-mode terminals are within a controllable range, and a distribution based on a token funnel model is established Constrained optimization problem, through dual decomposition, proposes a distributed algorithm. According to the simulation results, the distribution strategy proposed in this paper can not only greatly reduce the transmission delay, but also has a small overhead, which can be easily implemented in the actual system. Background technique [0002] With the development of wireless communication, different communication technologies and network systems are constantly appearing, such as a personal area network (WPAN, Wireless Personal Area Network) composed of Bluetooth technology, a local area network (WLAN, Wireless Local Area Network) s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/22H04W28/10
Inventor 刘勤郑杰陈紫晨李钊赵林靖黄鹏宇李建东
Owner XIDIAN UNIV
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