Method for forming power-efficient network

• US 20060189343A1
• Filed: 02/16/2006
• Published: 08/24/2006
• Est. Priority Date: 02/18/2005
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Woo-jong
• Application Number:
  US11/354,922
• Publication Number:
  US 20060189343A1
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04L 45/46 Cluster building
• CPC Class Codes: H04W 40/10 based on available power or energy
• CPC Class Codes: H04W 40/32 for defining a routing cluster membership
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for forming a power-efficient network in a wireless sensor network including allowing a device connected to a first coordinator which configures a first wireless network to apply receiving-end power of the device for a predetermined time period intermittently; allowing the device to which the receiving-end power is applied to receive a beacon signal transmitted from a second coordinator which configures a second wireless network; and allowing the device to operate as a router after receiving the beacon signal. It extends a network effectively, while minimizing power consumption of a node, and extends the lifetime of a network by minimizing power consumption of node.

Claims

1. A method for forming a power-efficient network, the method comprising:

using receiving-end power for a predetermined time period intermittently in a device connected to a first coordinator which configures a first wireless network;

receiving a beacon signal transmitted from a second coordinator which configures a second wireless network by the device in which the receiving-end power is used; and

operating the device as a router after receiving the beacon signal.

2. The method as claimed in claim 1, further comprising operating the second coordinator as a router connected to the first coordinator.

3. The method claimed in claim 2, wherein a plurality of devices connected to the second coordinator are connected to the first coordinator when the second coordinator operates as a router.

4. The method claimed in claim 1, wherein in the using the receiving-end power, the receiving-end power is used at least one time during the period of the beacon signal transmitted from the first coordinator.

5. The method claimed in claim 1, wherein in the using the receiving-end power, all devices connected to the first coordinator use the receiving-end power intermittently.

6. The method claimed in claim 1, wherein the predetermined time is a period of the beacon signal transmitted from the first coordinator.

7. The method claimed in claim 1, wherein the predetermined time is longer than the period of the beacon signal transmitted from the first coordinator.

8. A method for forming a power efficient network, the method comprising:

transmitting an adjacent network searching signal by a device connected to a first coordinator which configures a first wireless network;

receiving the network searching signal by a device connected to a second coordinator which configures a second wireless network;

operating the device connected to the second coordinator as a router when receiving a beacon signal from the second coordinator, after receiving the network searching signal; and

operating the device connected to the first coordinator which has transmitted the network searching signal as a router when the device connected to the second coordinator operates as a router, the network searching signal having been received by the device connected to the second coordinator.

9. The method as claimed in claim 8, wherein the operating the device connected to the second coordinator as a router is performed by a signal conflict between the network searching signal and the beacon signal from the second coordinator.

10. The method as claimed in claim 8, further comprising operating the second coordinator as a router connected to the first coordinator.

11. The method as claimed in claim 10, wherein a plurality of devices connected to the second coordinator are connected to the first coordinator when the second coordinator operates as a router.

12. The method as claimed in claim 8, wherein in transmitting the adjacent network searching signal, all devices connected to the first coordinator intermittently transmit other network searching signal.

13. The method as claimed in claim 8, wherein in the transmitting the adjacent network searching signal, all devices connected to the first coordinator transmit other network searching signal in a predetermined time interval.