Method for reducing power dissipation of radio equipment in network

Abstract

A method for decreasing power consumption of radio device in network sets station not participating communication in prereserved time to be sleep mode after data is received by radio device in order to decrease power consumption of station. The said method can be completely compatible with existed 802.11 radio device.

Description

technical field [0001] The invention relates to the technical field of wireless network communication, in particular to a method for reducing power consumption of wireless devices in a network. Background technique [0002] Since the late 1990s, Ad Hoc network technology (wireless ad-hoc network technology) has developed rapidly, and soon penetrated from military communication to various civilian communication fields. Ad Hoc network can provide flexible and convenient communication without infrastructure support. This technology broadens the application field of mobile communication and has a bright prospect. [0003] The characteristic of Ad Hoc network is that each node has equal status, can move freely, and communicate through wireless channels. Because the mobile terminal itself is powered by a battery, and the battery capacity is limited, so adopting various energy-saving mechanisms in the Ad Hoc network has become a main means to prolong its working time. [0004] Th...

AI Technical Summary

Problems solved by technology

Especially when the number of flows in the network is large, almost all nodes (those nodes participating in communication) will always be active, and this scheme has almost no energy-saving effect;

[0009] 2. Since all nodes in the ATIM window must be active, and only ATIM frames and ACK frames can be sent in the ATIM window, the size of the ATIM window has a great impact on the energy saving efficiency and throughput of the system

If the ATIM window is set too large, the time actually used to send data will be shortened, the maximum throughput rate will be reduced, and the energy saving efficiency will be reduced; while the ATIM window is too small, some sending nodes may not have time to establish with the receiving node within the ATIM window. connection, which may also reduce the maximum throughput

[0010] 3. During the sleep period of the site, the data to be sent to the sleeping site needs to be cached in the sending site. If the amount of data is large, the burden on the site is heavy, and the hardware requirements are also high;

[0011] 4. Since the data sent to the sleeping site needs to be cached first, the data delay is large

Therefore, in the process of data communication, irrelevant stations are still in the receiving state, consuming a lot of energy

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