Mechanism for dynamically adjusting turn-off window length of base station based on POMDP (Partially Observable Markov Decision Process)
A technology of window length and dynamic adjustment, applied in advanced technology, power management, electrical components, etc., can solve problems affecting user QoS, achieve easy control and reduce energy consumption
Active Publication Date: 2017-02-01
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology
If the base station is in the off state, if a large number of user requests arrive, they cannot be processed immediately, which will bring considerable delay and seriously affect the user's QoS
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[0035] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0036] figure 1 It is a schematic diagram of the mechanism for dynamically adjusting the length of the base station shutdown window based on POMDP, Figure 8 It is the overall flowchart of the system, as shown in the figure, the characteristics of this mechanism are as follows, 1) divide the base station into two modes: active mode and sleep mode; 2) each sleep mode is represented by a sleep cycle, and is represented by a deep sleep cycle and a light sleep cycle; 3) The transition between the base station’s active mode and sleep mode needs to be executed after making a judgment. The transition from the active mode to the sleep mode requires no business arrival for a continuous period of time τ, and the transition from the sleep mode to the active mode needs to prolong the duration of the light sleep cycle in consecutive k sleep cycles, tha...
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The invention relates to a mechanism for dynamically adjusting a turn-off window length of a base station based on a POMDP (Partially Observable Markov Decision Process). The mechanism comprises the following steps of (a) dividing the base station into an activation mode and a sleep mode, subdividing the sleep mode into deep sleep and light sleep, and supposing that the initial state of the base station is in the activation mode; expressing each mode by a cycle, making the base station enter a deep sleep cycle preferentially, and then making the base station enter a light sleep cycle; and (b) judging an amount of business arrived in each sleep cycle to decide a turn-off duration of the base station in the next sleep cycle, wherein the turn-off duration of the base station adopts a binary system growth mechanism, the arrived business is simulated by a dMMPP (discrete-time Markov-modulated Poisson Process), and the base station adopts the POMDP to predict the possible state of the base station in the next cycle, so that the turn-off duration of the base station in the next sleep cycle is decided. According to the mechanism, the energy consumption is taken as an optimization target and the queue delay is taken as a constraint condition, and the maximum energy conservation is realized through selecting the most appropriate turn-off window length of the base station.
Description
technical field [0001] The invention belongs to the technical field of wireless communication networks, and relates to a mechanism for dynamically adjusting the length of a base station shutdown window based on POMDP. Background technique [0002] With the high-speed increase in the number of users and the continuous expansion of the wireless network scale, high-capacity communication networks are facing new and huge challenges. The main problem is the huge energy consumption brought by various wireless communication devices in Information and Communication Technology (ICT). According to a survey by Gartner, a well-known American consulting organization, the energy consumed by the information and communication industry accounts for 2%-10% of the total global energy consumption. And in the wireless network, the energy consumption of the core network accounts for 13% of the total energy consumption of the network, RNC / BSC accounts for 5%, base stations account for 79%, and us...
Claims
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Login to View More IPC IPC(8): H04W52/02
CPCH04W52/0206Y02D30/70
Inventor 陈前斌何小强吴攀沈海强张元宝唐伦
Owner CHONGQING UNIV OF POSTS & TELECOMM