Title :
SDR architecture refinement for JTRS
Author_Institution :
Mitre Corp., McLean, VA, USA
Abstract :
Software-defined radio (SDR) has emerged as a focus of academic research, commercial development, and military investment for future wireless systems. This paper reviews the foundation concepts of the SDR. It characterizes the tradeoffs among core software-radio technologies. These include wideband RF hardware, a flexible digital signal processing platform, and a layered software architecture. Object-oriented analysis by industry participants defined architectures for the Joint Tactical Radio System (JTRS) and the SDR Forum. This paper analyzes those architectures in terms of layered virtual machines. The goal is to clarify technical issues in the cost-effective support of simultaneous hardware and software evolution. Research issues include layering of software objects, and virtual machine efficiency. Layering suggests refinements that would benefit both commercial and military implementations of SDR architecture. Potential benefits for integrated C4ISR are pointed out
Keywords :
command and control systems; land mobile radio; military communication; object-oriented methods; radio receivers; signal processing; software architecture; virtual machines; C4ISR; JTRS; Joint Tactical Radio System; SDR architecture refinement; flexible digital signal processing platform; foundation concepts; hardware evolution; layered software architecture; layered virtual machines; military implementations; object-oriented analysis; software evolution; software objects; software-defined radio; virtual machine efficiency; wideband RF hardware; Application software; Computer architecture; Defense industry; Distributed processing; Hardware; Object oriented modeling; Radio frequency; Resource management; Signal processing; Virtual machining;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.904942
