ADAPTIVE RELIABILITY PROTOCOL

• US 20170222936A1
• Filed: 02/02/2016
• Published: 08/03/2017
• Est. Priority Date: 02/02/2016
• Status: Active Grant

• Current Assignee: King Fahd University of Petroleum & Minerals (Government of Saudi Arabia)
• Original Assignee: King Fahd University of Petroleum & Minerals (Government of Saudi Arabia)
• Inventors: Al-Roubaiey, Anas Abdulwahid, Sheltami, Tarek R., Mahmoud, Ashraf S. Hasan
• Granted Patent: US 10,484,286 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 43/0829 Packet loss
• CPC Class Codes: H04L 43/0864 Round trip delays
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04W 28/0242 Determining whether packet losses are due to overload or to deterioration of radio communication conditions
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A device, method, and non-transitory computer readable medium that determine a reliability level for a communication network. A packet delivery ratio (PDR) is determined for a round period of the communication network operating at an adaptive reliability level based on a packet serial number (PSN). The communication network is controlled in a best effort mode, a reliable mode, or a switching mode based on the PDR.

Claims

1. A device comprising:

circuitry configured to

determine a reliability level for a communication network,

determine a packet delivery ratio (PDR) for a round period of the communication network operating at an adaptive reliability level based on a packet serial number (PSN), and

control the communication network in a best effort mode, a reliable mode, or a switching mode based on the PDR.

2. The device of claim 1, wherein the communication network is a wireless sensor network.

3. The device of claim 1, wherein the circuitry is further configured to determine a time length for the round period based on data characteristics of the communication network.

4. The device of claim 3, wherein the circuitry is further configured to determine an amount of time between successive round periods based on the data characteristics of the communication network.

5. The device of claim 1, wherein the circuitry is further configured to detect an assurance time interval (ATI) corresponding to a termination of the round period.

6. The device of claim 1, wherein the circuitry is further configured to detect a dropped packet when a current PSN is greater than a last PSN plus one.

7. The device of claim 1, wherein the circuitry is further configured to determine the reliability level and an associated reliability percentage value for the communication network based on at rate of change of sensor values of one or more sensor devices associated with the communication network.

8. The device of claim 7, wherein the circuitry is further configured to operate at the adaptive reliability level when the reliability percentage value is greater than 0% and less than 100%.

9. The device of claim 8, wherein the circuitry is further configured to determine an upper PDR threshold and lower PDR threshold based on the reliability percentage value.

10. The device of claim 9, wherein the circuitry is further configured to dynamically update the upper PDR threshold and lower PDR threshold based on network conditions.

11. The device of claim 1, wherein the circuitry is further configured to control operation of the communication network in the best effort mode when the PDR is greater than an upper PDR threshold.

12. The device of claim 1, wherein the circuitry is further configured to control operation of the communication network in the reliable mode when the PDR is less than a lower PDR threshold.

13. The device of claim 12, wherein the circuitry is further configured to perform negative-acknowledgement (NACK) messaging in the reliable mode.

14. The device of claim 1, wherein the circuitry is further configured to operate in the switching mode when transitioning between the best effort mode and the reliable mode.

15. The device of claim 14, wherein the circuitry is further configured to operate in the switching mode when a current operation mode is the best effort mode and the PDR is less than a lower PDR threshold.

16. The device of claim 14, wherein the circuitry is further configured to operate in the switching mode when a current operation mode is the reliable mode and the PDR is greater than an upper PDR threshold.

17. The device of claim 1, wherein the circuitry is further configured to modify an operation mode of the communication network via a mode bit.

18. The device of claim 1, wherein the circuitry is further configured to operate in an application layer independent from a media access control (MAC) layer.

19. A method comprising:

determining, via a server, a reliability level for a communication network;

determining, via the server, a packet delivery ratio (PDR) for a round period of the communication network operating at an adaptive reliability level based on a packet serial number (PSN); and

controlling, via the server, the communication network in a best effort mode, a reliable mode, or a switching mode based on the PDR.

20. A non-transitory computer readable medium having instructions stored therein that, when executed by one or more processor, cause the one or more processors to perform a method of adaptively controlling a reliability protocol, the method comprising:

determining a reliability level for a communication network;

determining a packet delivery ratio (PDR) for a round period of the communication network operating at an adaptive reliability level based on a packet serial number (PSN); and

controlling the communication network in a best effort mode, a reliable mode, or a switching mode based on the PDR.