Wireless distributed network time slot reservation and allocation method based on request ordering
A distributed network and timeslot reservation technology, applied in the field of communication, can solve the problems of poor flexibility and fairness of timeslot reservation, not considering the request of idle timeslots, and complicated calculation, so as to achieve the effect of overcoming the maximum throughput of the network.
Active Publication Date: 2019-03-26
XIDIAN UNIV
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Problems solved by technology
The disadvantage of this method is that in the secondary allocation stage, the nodes need to solve the maximum throughput of the network, the calculation is complicated, and the response ability to the sudden business is poor
The disadvantage of this method is that since the method specifies the idle time slot to be occupied by the reservation node, when the network load is high, the request of other nodes in the network for the idle time slot is not considered, and the flexibility of time slot reservation poor sex and fairness
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[0067] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0068] Refer to attached figure 1 , to further describe in detail the specific steps of the present invention.
[0069] Step 1, the node joins the network.
[0070] Time-division multiple access TDMA access mode is adopted, and each node to be connected to the network selects its own broadcast time slot.
[0071] The specific steps of the TDMA access method are as follows.
[0072] Step 1: Each node to be connected to the network listens for a time of a superframe length, and records the one-hop neighbor node broadcast message received by the node to be connected to the network during this period; the broadcast message includes sending a one-hop neighbor node broadcast message The broadcast time slot occupancy information of the node, the broadcast time slot occupancy information of the node's one-hop neighbor nodes, and the cyclic shift coefficient of the...
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The invention discloses a wireless distributed network time slot reservation and allocation method based on request ordering, and mainly solves the problem of time slot resource reservation and allocation in a wireless distributed network. The method uses a reserved time slot RS to initiate data time slot reservation requests, uses a response time slot PS to sort the reservation requests based onthe scheduling score value, responds to the reservation requests, and uses an acknowledge time slot AS to perform time slot reservation confirmation, thereby completing the time slot reservation and allocation bearing normal services. For burst streaming services, a time slot locking mechanism is adopted for fast time slot occupation. The method ensures the fairness of time slot allocation betweendifferent nodes and services while reducing the end-to-end delay of the service data.
Description
technical field [0001] The invention belongs to the technical field of communication, and further relates to a method for reserving and allocating time slots in a wireless distributed network based on request sorting in the technical field of wireless communication. The invention can be applied to the reservation and allocation of time slot resources for user service data transmission in the mobile ad hoc network. Background technique [0002] The mobile ad hoc network is a special wireless mobile communication network, which consists of a series of mobile nodes with wireless transceivers to form a multi-hop autonomous system. There is no central node in this network, and each node in the network has an equal status and can initiate and forward services. Therefore, it can meet the communication needs of field activities, disaster relief and battlefields, and is widely used in disaster relief work systems, between individual soldiers, and other occasions that require tempora...
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IPC IPC(8): H04W72/04H04W28/16
CPCH04W28/16H04W72/0446H04W72/52
Inventor 史琰王晨吉盛敏刘俊宇仲伟慧李小鹏陈春光
Owner XIDIAN UNIV