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Wireless resource allocation method and cognitive radio user equipment

A technology of cognitive radio and user equipment, applied in the field of wireless resource allocation method and cognitive radio user equipment, can solve problems such as user interference and simultaneous consideration

Inactive Publication Date: 2013-04-24
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although power control and spectrum allocation are considered, the power control and spectrum allocation of users are still carried out sequentially, and the two factors cannot be considered at the same time. Transmission power, interference between users caused by malicious competition between each other

Method used

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  • Wireless resource allocation method and cognitive radio user equipment
  • Wireless resource allocation method and cognitive radio user equipment
  • Wireless resource allocation method and cognitive radio user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] see figure 2 , an embodiment of the present invention provides a method for allocating wireless resources, including:

[0051] 201: The CR user equipment calculates the utility on each available channel and the transmit power to achieve the utility;

[0052] According to the interference information on each available channel, the utility on each available channel and the transmit power time to achieve the utility are calculated.

[0053] 202: compare the utility on each available channel;

[0054] 203: Select the available channel with the maximum utility and the transmit power corresponding to the maximum utility as the available channel and transmit power of the CR user equipment respectively.

[0055] 201 includes:

[0056] A: Detect interference information on each available channel;

[0057] B: Calculate the transmit power on each available channel according to the interference information;

[0058] C: Calculate the utility on each available channel according...

Embodiment 2

[0075] see image 3 , an embodiment of the present invention provides a wireless resource allocation method, including:

[0076] 301: According to the situation of the CR network, establish a game theory model for the CR network G=i}> where,

[0077] ①N is the participant, N CR users;

[0078] ②A is the strategy space; it mainly includes two parts:

[0079] Channel selection strategy (f 1 , f 2 , f 3  … f M ), M represents the number of available channels;

[0080] Power selection strategy (P min i (f j )max ), i=1, 2, 3...N; j=1, 2, 3...M;

[0081] Among them, P min is the minimum transmission power of the transmitter of CR user equipment i that enables the receiver of CR user equipment i to decode normally when there is no interference from other users;

[0082] P max is the minimum value of the maximum allowable transmission power of the transmitter of the CR user equipment i and the maximum transmission power calculated according to the interference temperature...

Embodiment 3

[0108] see Figure 4 , an embodiment of the present invention provides a cognitive radio user equipment, including:

[0109] Calculation module 401, configured to calculate utility on each available channel and transmit power to achieve the utility;

[0110] Comparison module 402, used to compare the utility on each available channel;

[0111] The selection module 403 is configured to select the available channel with the maximum utility and the transmit power corresponding to the maximum utility.

[0112] Wherein, the calculation module 401 may include:

[0113] An interference information obtaining module, configured to obtain interference information on each available channel;

[0114] A transmit power obtaining module, configured to calculate the transmit power on each available channel according to the interference information;

[0115] The utility obtaining module is used for calculating the utility on each available channel according to the transmit power.

[0116]...

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Abstract

The embodiment of the invention discloses a wireless source allocation method and cognitive radio user equipment, belonging to the technical field of communication. The method comprises the steps of calculating the utility of each available channel and emitting power for reaching the utility by the cognitive radio user equipment; comparing the utilities of all available channels; and selecting anavailable channel with maximum utility and the emitting power corresponding to the maximum utility. The user equipment comprises a calculating module, a comparing module and a selecting module. In the embodiment of the invention, the selective frequency spectrum resource and the emitting power are combined to further reduce the co-channel interference between users.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless resource allocation method and cognitive radio user equipment. Background technique [0002] With the development of wireless communication technology, people's demand for wireless spectrum resources is increasing. However, wireless spectrum is a scarce, limited resource. How to make full use of spectrum resources and improve spectrum utilization has become an urgent problem to be solved. CR (Cognitive radio, cognitive radio) technology provides a feasible solution to this problem. In the CR network, users with cognitive functions (CR users) need to detect the spectrum of licensed users, and use the spectrum resources of the licensed frequency band without affecting the normal communication of licensed users. [0003] Since the use of spectrum by CR users depends on licensed users, and the spectrum occupancy of licensed users changes rapidly with time and locat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04B7/005H04W72/54
CPCY02D30/70
Inventor 曾志民郭彩丽李琳刘芳芳冯春燕王海光冯淑兰刘劲楠
Owner HUAWEI TECH CO LTD