Ravi Prakash

US Patent:

20110051677, Mar 3, 2011

Filed:

Jan 13, 2009

Appl. No.:

12/864244

Inventors:

Jorjeta Jetcheva - Los Gatos CA, US
Ravi Prakash - Los Gatos CA, US
Vinay Gupta - Kamataka, IN
Sachin Kanodia - San Jose CA, US
Mohan Natarajan - San Ramon CA, US

Assignee:

FIRETIDE, INC. - Los Gatos CA

International Classification:

H04W 72/04

US Classification:

370329

Abstract:

Channel assignment for wireless access networks is directed toward improved overall communication capability of the networks. A network is formed of wireless access points (APs) coupled via wired (and/or wireless) links and enabled to communicate with clients via radio channels of each of the APs. Local information is collected at each of the APs and processed to determine channel assignments according to a Neighbor Impact Metric (NIM) that accounts for one-hop and two-hop neighbors as well as neighbors not part of the network. Optionally, the NIM accounts for traffic load on the APs. The channel assignments are determined either on a centralized resource (such as a server or one of the APs) or via a distributed scheme across the APs. The local information includes how busy a channel is and local operating conditions such as error rate and interference levels.

US Patent:

20210058933, Feb 25, 2021

Filed:

Apr 6, 2020

Appl. No.:

16/841234

Inventors:

- Campbell CA, US
Ravi PRAKASH - Los Gatos CA, US
Vinay GUPTA - Bangalore, Kamataka, IN
Sachin KANODIA - San Jose CA, US
Mohan NATARAJAN - San Ramon CA, US

International Classification:

H04W 72/08
H04W 72/04
H04L 12/24

Abstract:

Channel assignment for wireless access networks is directed toward improved overall communication capability of the networks. A network is formed of wireless access points (APs) coupled via wired (and/or wireless) links and enabled to communicate with clients via radio channels of each of the APs. Local information is collected at each of the APs and processed to determine channel assignments according to a Neighbor Impact Metric (NIM) that accounts for one-hop and two-hop neighbors as well as neighbors not part of the network. Optionally, the NIM accounts for traffic load on the APs. The channel assignments are determined either on a centralized resource (such as a server or one of the APs) or via a distributed scheme across the APs. The local information includes how busy a channel is and local operating conditions such as error rate and interference levels.

US Patent:

20200344169, Oct 29, 2020

Filed:

Jul 14, 2020

Appl. No.:

16/928965

Inventors:

- Mission Hills CA, US
Ravi Prakash - Santa Clara CA, US
Amar Singhal - Cupertino CA, US
Jorjeta Gueorguieva Jetcheva - San Jose CA, US

International Classification:

H04L 12/803
H04L 12/26
H04L 12/721
H04W 40/02
H04L 12/761

Abstract:

Enhanced mesh network performance is provided by computation of a path metric with respect to multi-hop paths between nodes in a mesh network and determination of a path through the mesh network that is optimal according to the path metric. Information is communicated in the mesh network according to the determined path. Nodes in the mesh network are enabled to communicate via one or more wireless links and/or one or more wired links. The path metric optionally includes an effective bandwidth path metric having elements (listed from highest to lowest conceptual priority) including an inverse of a sustainable data rate, a number of wireless links, and a number of wireless and wired links. The sustainable data rate is a measure of communication bandwidth that is deliverable by a path for a period of time. Accounting is made for interference between contiguous wireless links operating on the same channel.

US Patent:

20160366059, Dec 15, 2016

Filed:

Jan 18, 2016

Appl. No.:

14/997879

Inventors:

- Campbell CA, US
Ravi Prakash - Santa Clara CA, US
Amar Singhal - Cupertino CA, US
Jorjeta Gueorguieva Jetcheva - San Jose CA, US

International Classification:

H04L 12/803
H04L 12/761
H04L 12/26
H04W 40/02

Abstract:

Enhanced mesh network performance is provided by computation of a path metric with respect to multi-hop paths between nodes in a mesh network and determination of a path through the mesh network that is optimal according to the path metric. Information is communicated in the mesh network according to the determined path. Nodes in the mesh network are enabled to communicate via one or more wireless links and/or one or more wired links. The path metric optionally includes an effective bandwidth path metric having elements (listed from highest to lowest conceptual priority) including an inverse of a sustainable data rate, a number of wireless links, and a number of wireless and wired links. The sustainable data rate is a measure of communication bandwidth that is deliverable by a path for a period of time. Accounting is made for interference between contiguous wireless links operating on the same channel.

US Patent:

20150208426, Jul 23, 2015

Filed:

Sep 3, 2014

Appl. No.:

14/475827

Inventors:

- Campbell CA, US
Ravi PRAKASH - Los Gatos CA, US
Vinay GUPTA - Bangalore, IN
Sachin KANODIA - San Jose CA, US
Mohan NATARAJAN - San Ramon CA, US

International Classification:

H04W 72/08
H04W 72/04
H04L 12/24

Abstract:

Channel assignment for wireless access networks is directed toward improved overall communication capability of the networks. A network is formed of wireless access points (APs) coupled via wired (and/or wireless) links and enabled to communicate with clients via radio channels of each of the APs. Local information is collected at each of the APs and processed to determine channel assignments according to a Neighbor Impact Metric (NIM) that accounts for one-hop and two-hop neighbors as well as neighbors not part of the network. Optionally, the NIM accounts for traffic load on the APs. The channel assignments are determined either on a centralized resource (such as a server or one of the APs) or via a distributed scheme across the APs. The local information includes how busy a channel is and local operating conditions such as error rate and interference levels.