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Dive into the research topics where R. Thomas Derryberry is active.

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Featured researches published by R. Thomas Derryberry.


international conference on communications | 2001

Techniques for efficient wireless communication systems modeling using C

David LaRocque; Balaji Raghothaman; R. Thomas Derryberry; George Fry

Because implementation of baseband algorithms is often realized in application-specific integrated circuits (ASICs), software simulations are the necessary first step. Considerable time and effort is spent in simulating new technologies for digital wireless communications. These simulations can be time-consuming to develop, and even more time-consuming to execute. For these reasons, we are highly motivated to seek improvements in execution speed and developer productivity. We turn to an investigation of C++ as a simulation language to accomplish both goals. This paper describes the results of tests conducted comparing C and C++ implementations of algorithms and constructs that are common to digital wireless communication systems.


Archive | 2002

Apparatus, and associated method, for facilitating antenna weight selection utilizing deterministic perturbation gradient approximation

Balaji Raghothaman; R. Thomas Derryberry


Archive | 2002

System and method for random access channel capture with automatic retransmission request

Antti Toskala; Esa Malkamaki; Mikko J. Rinne; Anu Virtanen; Guan Hao; R. Thomas Derryberry


Archive | 2003

Method and apparatus for switching mobile station between autonomous and scheduled transmissions

R. Thomas Derryberry; Liangchi Alan Hsu; Mark W. Cheng


Archive | 2000

Adaptive antenna transmit array with reduced CDMA pilot channel set

R. Thomas Derryberry; Balaji Raghothaman


Archive | 2003

Systeme et procede pour capture de canal d'acces aleatoire par demande de retransmission automatique

R. Thomas Derryberry; Guan Hao; Esa Malkamaki; Mikko J. Rinne; Antti Toskala; Anu Virtanen


Archive | 2003

Verfahren und vorrichtung zum umschalten einer mobilstation zwsichen autonomen und eingeplanten übertragungen

R. Thomas Derryberry; Liangchi Alan Hsu; Mark W. Cheng


Archive | 2003

Zweischwellen-Aufwärtsstreckenratensteuerung zur Ermöglichung von Aufwärtsstrecken-Einteilung

Antti Toskala; Esa Malkamaki; Guan Hao; Mikko J. Rinne; R. Thomas Derryberry


Archive | 2003

Method, user equipment, node b and method for random access channel capture with automatic retransmission request

R. Thomas Derryberry; Guan Hao; Esa Malkamaki; Mikko J. Rinne; Antti Toskala; Anu Virtanen


Archive | 2003

System und verfahren zur direktzugriffskanalerfassung mit automatischer neuübertragungsanforderung

Antti Toskala; Esa Malkamaki; Mikko J. Rinne; Anu Virtanen; Guan Hao; R. Thomas Derryberry

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