DSP-Enabled Radio

Electronically Tunable Antenna Pair and Novel RF Front-End Architecture for Software-Defined Radios

This paper proposes a novel RF front-end architecture for software-defined radios (SDRs) based on an electronically tunable antenna pair controlled by an antenna control unit (ACU) consisting of field effect t...

Authors: Sung-Hoon Oh, James T. Aberle, Sreeraman Anantharaman, Kentaro Arai, Han Liang Chong and Seng Chee Koay

Vector Processing as an Enabler for Software-Defined Radio in Handheld Devices

A major challenge of software-defined radio (SDR) is to realize many giga operations per second of flexible baseband processing within a power budget of only a few hundred mW. A heterogeneous hardware architec...

Authors: Kees van Berkel, Frank Heinle, Patrick P. E. Meuwissen, Kees Moerman and Matthias Weiss

Efficient and Robust Detection of GFSK Signals under Dispersive Channel, Modulation Index, and Carrier Frequency Offset Conditions

Gaussian frequency shift keying is the modulation scheme specified for Bluetooth. Signal adversities typical in Bluetooth networks include AWGN, multipath propagation, carrier frequency, and modulation index o...

Authors: Charles Tibenderana and Stephan Weiss

Bit Manipulation Accelerator for Communication Systems Digital Signal Processor

This paper proposes application-specific instructions and their bit manipulation unit (BMU), which efficiently support scrambling, convolutional encoding, puncturing, interleaving, and bit stream multiplexing....

Authors: Sug H. Jeong, Myung H. Sunwoo and Seong K. Oh

SoftExplorer: Estimating and Optimizing the Power and Energy Consumption of a C Program for DSP Applications

We present a method to estimate the power and energy consumption of an algorithm directly from the C program. Three models are involved: a model for the targeted processor (the power model), a model for the al...

Authors: Eric Senn, Johann Laurent, Nathalie Julien and Eric Martin

Editorial

Authors: Robert W. Stewart, Michael W. Hoffman and Stephan Weiss

Multimedia Terminal System-on-Chip Design and Simulation

This paper proposes a design approach based on integrated architectural and system-on-chip (SoC) simulations. The main idea is to have an efficient framework for the design and the evaluation of multimedia ter...

Authors: Ivano Barbieri, Massimo Bariani, Alessandro Scotto and Marco Raggio

Comparison of Antenna Array Systems Using OFDM for Software Radio via the SIBIC Model

This paper investigates the performance of two candidates for software radio WLAN, reconfigurable OFDM modulation and antenna diversity, in an indoor environment. The scenario considered is a ...

Authors: Khoi D. Le, Michael W. Hoffman and Robert D. Palmer

Blind I/Q Signal Separation-Based Solutions for Receiver Signal Processing

This paper introduces some novel digital signal processing (DSP)-based approaches to some of the most fundamental tasks of radio receivers, namely, channel equalization, carrier synchronization, and I/Q mismat...

Authors: Mikko Valkama, Markku Renfors and Visa Koivunen

A Real-Time GPP Software-Defined Radio Testbed for the Physical Layer of Wireless Standards

We present our contribution to the general-purpose-processor-(GPP)-based radio. We describe a baseband software-defined radio testbed for the physical layer of wireless LAN standards. All physical layer functi...

Authors: R. Schiphorst, F. W. Hoeksema and C. H. Slump

A Consistent Design Methodology for Wireless Embedded Systems

Complexity demand of modern communication systems, particularly in the wireless domain, grows at an astounding rate, a rate so high that the available complexity and even worse the design productivity required...

Authors: P. Belanović, B. Knerr, M. Holzer, G. Sauzon and M. Rupp

Design and Implementation of a DSP-Based MIMO System Prototype for Real-Time Demonstration and Indoor Channel Measurements

The design and implementation of the Virginia Tech Space-Time Advanced Radio (VT-STAR), a multiple antenna element space-time (ST) processing prototype testbed, is presented. The testbed is a research tool for...

Authors: Raqibul Mostafa, Ran Gozali, Ramesh Chembil Palat, Max Robert, William G. Newhall, Brian D. Woerner and Jeffrey H. Reed

Coherent Code Tracking for Spatial Transmit Diversity DS-CDMA Systems

Spatial transmit diversity schemes are now well integrated into third-generation cellular mobile communication system specifications. When DS-CDMA-based technology is deployed in typical macro- and microcell e...

Authors: Garrey W. Rice, Iain G. Stirling and R.W. Stewart

Software Radios: Unifying the Reconfiguration Process over Heterogeneous Platforms

Future radio transceivers supporting the software radio concept will provide increased features for radio access networks. However, the reconfiguration of radio equipment requires the existence of an architect...

Authors: Xavier Revés, Antoni Gelonch, Vuk Marojevic and Ramon Ferrús

DSP-Enabled Radio Astronomy: Towards IIIZW35 Reconquest

In radio astronomy, the radio spectrum is used to detect weak emission from celestial sources. By spectral averaging, observation noise is reduced and weak sources can be detected. However, more and more obser...

Authors: Rodolphe Weber, Cédric Viou, Andrée Coffre, Laurent Denis, Philippe Zarka and Alain Lecacheux