Peter S Behroozi from Tucson, AZ, age 39

view source

Location:

Tucson, AZ

Work:

The University of Arizona
Assistant Professor

Characterizing Uncoordinated Interference Of A Wireless Network
view source
US Patent:

8559407, Oct 15, 2013
Filed:

Aug 31, 2007
Appl. No.:

11/897913
Inventors:

Kevin Weil - Redwood City CA, US
Peter Behroozi - Stanford CA, US
Cyrus Behroozi - Menlo Park CA, US
Assignee:

Tropos Networks, Inc. - Sunnyvale CA
International Classification:

H04W 4/00
H04W 72/00
H04L 12/26
H04L 12/28
H04J 3/00
US Classification:

370338, 455450, 455453, 370401, 370252, 370345
Abstract:

An apparatus and method of a wireless access node within a network characterizing uncoordinated interference is disclosed. One method includes the wireless node collecting air-time usage history as perceived by the wireless access node. The wireless access node receives air-time usage history as perceived by at least one neighboring wireless node. The wireless access node comparatively analyzes the collected air-time usage and the received air-time usage.

Mitigation Of Uncoordinated Interference Of A Wireless Access Node
view source
US Patent:

8606187, Dec 10, 2013
Filed:

Aug 31, 2007
Appl. No.:

11/897914
Inventors:

Kevin Weil - Redwood City CA, US
Peter Behroozi - Stanford CA, US
Cyrus Behroozi - Menlo Park CA, US
Assignee:

Tropos Networks, Inc. - Sunnyvale CA
International Classification:

H04B 17/00
US Classification:

455 6711, 455 6713, 455 631, 455 411, 455 412, 455 413, 370315, 370320, 370351, 370422, 370423
Abstract:

An apparatus and method of a wireless node mitigating the effects of uncoordinated interference is disclosed. One embodiment of a method includes the wireless node monitoring uncoordinated interference affecting transmissions of the wireless node, and evaluating a plurality of wireless links, the evaluation influenced at least in part on the monitored uncoordinated interference.

Characterizing Transmission Of Access Nodes Within A Wireless Network
view source
US Patent:

20080182607, Jul 31, 2008
Filed:

Jan 29, 2007
Appl. No.:

11/699101
Inventors:

Peter Behroozi - Stanford CA, US
Cyrus Behroozi - Menlo Park CA, US
International Classification:

H04B 7/00
US Classification:

455522
Abstract:

A method of characterizing transmission of a node of a wireless network is disclosed. The method includes determining a neighbor function based on how many neighboring nodes are affected by a neighbor function based on how many neighboring nodes are affected by signals transmitted from the node at varying power levels. For a range of transmission path losses between the node and neighboring nodes, transmission power levels and transmission data rates are calculated that minimize an air-time metric, wherein the air-time metric is dependent on the neighbor function and an air-time occupied by transmission packets.

Characterizing Transmission Of Access Nodes Within A Wireless Network
view source
US Patent:

20130258950, Oct 3, 2013
Filed:

May 28, 2013
Appl. No.:

13/903051
Inventors:

Peter Behroozi - Menlo Park CA, US
Cyrus Behroozi - Menlo Park CA, US
Assignee:

TROPOS NETWORKS, INC. - Sunnyvale CA
International Classification:

H04W 52/24
US Classification:

370328
Abstract:

Methods, apparatuses and systems for characterizing transmission of access nodes within a wireless mesh network are disclosed. One apparatus includes an access node, wherein the access node is operative to determine a neighbor function based on how many neighboring nodes are affected by signals transmitted from the access node at varying power levels, determine an airtime per link occupied by transmission packets on links to each of the identified neighbor nodes of the neighbor function, determine an airtime metric based on the neighboring nodes and the airtime per link occupied by the transmission packets, calculate combinations of transmission power levels and transmission data rates that jointly minimize an air-time metric, and set a transmission power level and transmission data rate for transmission to a target node based on a path loss between the access node and the target node, and the calculated transmission power levels and data rates.

Reliable Determination Of Contact Angle Of Sessile Drops
view source
US Patent:

20190285530, Sep 19, 2019
Filed:

Mar 15, 2019
Appl. No.:

16/355299
Inventors:

- Tucson AZ, US
Peter Behroozi - Tucson AZ, US
International Classification:

G01N 13/02
G06T 7/62
Abstract:

Various examples are provided related to determination of contact angle of sessile drops. In one example, a method includes determining a volume of a sessile drop of fluid disposed on a test surface; determining a height of the sessile drop of fluid; and determining a contact angle of the sessile drop of fluid based upon the volume and the height of the sessile drop. In another example, a system includes a volume sensing, a height sensing, and computing that can determine a volume and height of a sessile drop using volume and height data from the sensing, and determine a contact angle of the sessile drop with the volume and the height. The contact angle and surface tension can be determined with at least three of volume, a height, a footprint radius, a radius of maximum horizontal extent, and/or an apex radius of curvature of the drop.

Peter S Behroozi