Paper Info
Title
An experimental study of network performance impact of increased latency in software defined radios
Abstract
Software Defined Radios are becoming more and more prevalent. Especially in the radio amateur community, Software Defined Radios are a big success. The wireless industry also has considerable interest in the dynamic reconfigurability and other advantages of Software Defined Radios. Our research focuses on the latency of Software Defined Radios and its impact on throughput in modern wireless protocols. Software Defined Radio systems often employ a bus system to transfer the samples from a radio frontend to the processor which introduces a non-negligible latency. Additionally, the signal processing calculations on general-purpose processors introduce additional latencies that are not found on conventional radios. This work concentrates on one particular Software Defined Radio system called GNU Radio, an open source Software Defined Radio application, and one of its hardware components, the Universal Software Radio Peripheral (USRP), and analyzes its receive and transmit latencies. We will use these measurements to characterize the performance impact on IEEE 802.15.4 implementation in GNU Radio. Additionally, we present two Software Defined Radio implementations of short-range radio standards, a FSK scheme used in the Chipcon CC1000 radio, and the physical layer of IEEE 802.15.4. We use these implementations for round trip time measurements and introduce two sample applications, a physical layer bridge between the FSK scheme and IEEE 802.15.4, and a dual channel receiver that receives two radio channels concurrently.
Year
DOI
Venue
2007
10.1145/1287767.1287779
WiNTECH
Keywords
Field
DocType
conventional radio,universal software radio peripheral,network performance impact,experimental study,software defined radio application,fsk scheme,gnu radio,software defined radio implementation,increased latency,software defined radio system,software defined radios,chipcon cc1000 radio,particular software defined radio,physical layer,round trip time,software defined radio,signal processing,network performance
Remote radio head,Wireless,Reconfigurability,Frequency-shift keying,Computer science,Software-defined radio,Universal Software Radio Peripheral,Radio-frequency engineering,Cognitive radio,Embedded system
Conference
Citations 
PageRank 
References 
46
4.44
5
Authors
3
Name
Order
Citations
PageRank
Thomas Schmid140740.11
Oussama Sekkat2675.90
Mani Srivastava3130521317.38