基于协同学的异构无线网络选择算法

doi:10.11959/j.issn.1000-0801.2017092

Abstract

Abstract:

A network selection algorithm based on synergetic for heterogeneous wireless network was proposed. The algorithm considered the network selection as a systematic problem. The optional network was a composite system and each kind of service running on the terminal was a subsystem. The entropy of the composite system was obtained according to the concept of entropy and it can reflected the degree of coordination among the subsystems, which in turn reflected the overall performance of the network. The simulation results show that the QoS satisfaction rate of services based on the proposed algorithm is 95%, while the QoS satisfaction rate of services based on the TOPSIS algorithm is only 25%, and the performance of the former is improved by nearly four times, indicating that the problem of multi-service terminal network selection can be solved by the proposed algorithm.

Key words: multi-service terminal, synergetic, QoS satisfaction rate, network selection

CLC Number:

TN929.5

Ran LUO,Su ZHAO,Qi ZHU. Network selection algorithm based on synergetic for heterogeneous wireless network[J]. Telecommunications Science, 2017, 33(4): 78-86.

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References 13

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业务类型	会话类业务	流媒体类业务	交互类业务
B/(kbit·s^-1)	＞32	＞512	＞128
D/ms	＜150	＜180	＜500
J/ms	＜20	＜50	＜100
L	＜0.3%	＜0.5%	＜0.05%

网络属性	UMTS1	UMTS2	WLAN1	WLAN2	WiMAX1	WiMAX2
B/(kbit·s^-1)	100～2 000	100～2 000	1 000～11 000	1 000～54 000	1 000～60 000	1 000～60 000
D/ms	25～50	25～50	100～150	100～150	60～100	60～100
J/ms	5～10	5～10	10～20	10～20	3～10	3～10
L	0.02%～0.08%	0.02%～0.08%	0.02%～0.08%	0.02%～0.08%	0.02%～0.08%	0.02%～0.08%

业务类型		会话类				流媒体类				交互类
属性	B	D	J	L	B	D	J	L	B	D	J	L
B	1	1/9	1/7	3	1	5	1/5	5	1	3	7	1/7
D	9	1	3	9	1/5	1	1/9	1	1/3	1	5	1/7
J	7	1/3	1	7	5	9	1	9	1/7	1/5	1	1/9
L	1/3	1/9	1/7	1	1/5	1	1/9	1	7	7	9	1

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Network selection algorithm based on synergetic for heterogeneous wireless network

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