Wireless link delivery ratio prediction
AssigneeHoneywell International Inc.
InventorsYunqian Ma, Yinzhe Yu
Life of this patent
Estimating the term…
Abstract
Packet signal-to-noise ratio (SNR) values and historical delivery ratio information are combined to predict a delivery ratio for a communication link. Since packet SNR may be available with every received packet on the link, link SNR level is both accurate and easy to obtain. In one embodiment, a link quality classification algorithm uses delivery ratio and SNR history, based on local classification methods (such as k-Nearest-Neighbor, Kernel-based method) and global classification methods (e.g. Support vector machines) to classify links as either good or bad. In further embodiments, links may be classified at multiple different levels to indicate predicted link quality.
Claims20
A method comprising:
- determining a signal to noise ratio (SNR) for a wireless communication link;
- estimating a delivery ratio for information to be transmitted on the wireless communication link;
- and
- determining whether or not to use the wireless communication link for the information as a function of the estimated delivery ratio and the signal to noise ratio.
A method comprising:
- determining a signal to noise ratio (SNR) for a wireless communication link;
- estimating a delivery ratio for information to be transmitted on the wireless communication link;
- classifying the link as good if the estimated delivery ratio is greater than a threshold plus a border value;
- classifying the link as good if the estimated delivery ratio is within a border on either side of the threshold value and an SNR value is greater than an SNR threshold;
- and
- otherwise classifying the link as bad.
A method comprising:
- determining a signal to noise ratio (SNR) for a wireless communication link;
- estimating a delivery ratio for information to be transmitted on the wireless communication link;
- strongly or weakly classifying the link as good or bad as a function of a threshold range;
- if the link is weakly classified as good, classifying the link as good or bad as a function of an SNR value.
A node for a wireless network, the node comprising:
- a module that determines a signal to noise ratio (SNR) for a wireless communication link;
- a module that estimates a delivery ratio for information to be transmitted on the wireless communication link;
- and
- a module that classifies the link as good if the estimated delivery ratio is greater than a threshold plus a border value, and classifies the link as good if the estimated delivery ratio is within a border on either side of the threshold value and an SNR value is greater than an SNR threshold, and otherwise classifies the link as bad.
A computer readable medium having instructions for causing a computer to perform a method comprising:
- determining a signal to noise ratio (SNR) for a wireless communication link;
- estimating a delivery ratio for information to be transmitted on the wireless communication link;
- and
- determining whether or not to use the wireless communication link for the information as a function of the estimated delivery ratio and the signal to noise ratio.
A method comprising:
- determining a signal to noise ratio (SNR) for a wireless communication link;
- estimating a delivery ratio for information to be transmitted on the wireless communication link;
- classifying the wireless communication link as good or bad for a future transmission as a function of the estimated delivery ratio and the signal to noise ratio;
- sending the classification to a sender node coupled to the communication link;
- executing a routing algorithm;
- and
- sending the future transmission over the wireless communication link if selected by the routing algorithm if the wireless communication link is classified as good.
Dependencies are inferred from the claim text.