Green software defined radios : enabling seamless connectivity while saving on hardware and energy
The increasing need for functional flexibility (the number of wireless standards is large and expected to grow) and the exploding cost of system-on-chip design will make implementation of wireless standards on reconfigurable radios the only viable option in the future. Software Defined Radios (SDRs) will offer higher flexibility at lower cost. Moreover, they are key enablers in the realization of cognitive radios, which will enable more efficient use of network and spectral resources. Green SDRs will be essential, to save on crucial and scarce resources: energy and spectrum. Green Software Defined Radios gives insight in the trends asking for green SDRs. The essential ingredients of these radios are elaborated on. Specifically, design solutions and approaches for energy-scalable SDRs, both for the radio front-end and the digital baseband (including hardware and software), are explained. Intelligent (cross-layer) control is introduced as the key to achieve energy efficient operation and seamless connectivity. Last but not least the book focuses on cognitive radios, opening a new wireless order. These radios build on SDR platforms, enhanced with a sensing engine and intelligent control
1 online resource (x, 157 pages) : illustrations
9781402082122, 1402082126
314182707
1 The Wireless and Technology Scene: Trends Asking for GreenSoftware Defined Radio Solutions; 1.1 Chronicle of an Innovative Encounter: When WirelessCommunicationandMicro-electronicsMeet; 1.2 The Wireless Scene: Heterogeneity Desires Flexibility; 1.3 The Technology Scene: Cost Imposes Reconfigurability; 1.4 Uniting Wireless Wishes with Technological Constraints:The Power and Spectral Challenge; References; 2 Software Defined Radios: Enabling Seamless Connectivityfor Handheld Devices; 2.1 Flexible Radios: Species and their Territorium; 2.2 Towards Green SDRs: A Holistic Approach. 4.4 Processors for SDR-Baseband: Working Horses in a Racefor Speed and Power4.5 Outer Modem Engine: Going with the Flexibility Stream; 4.6 Conclusions; References; 5 Software: Fuel for Green Radios: The Blessing and the Curse; 5.1 The Blessing and the Curse; 5.2 Structured SW Design: Going for Network and PlatformCompatibility; 5.3 Platform-Level SW: The Control Room for the SDR; 5.4 Baseband Processor SW: The Working Horse for the SDR; 5.5 System Level SW: Providing SDR Terminals with Social Skills; 5.6 Future Challenges and Solutions; 5.7 Conclusions; References. 6 Energy-Aware Cross-Layer Radio Management: Exploit Flexibilityfor Saving Energy6.1 Introduction; 6.2 SDR Design Step: Enable Flexibility and Energy Scalability; 6.3 SDR Control Step: Exploit Flexibility and Scalability for Saving Energy; 6.4 Conclusions; References; 7 Towards Cognitive Radios: Getting the Best Out of the Radioand the Spectrum; 7.1 Introduction; 7.2 New Control Functionality; 7.3 New Sensing Functionality; 7.4 New Radio Architectures; 7.5 Conclusion; References; 8 Close: This is not the End, it's Just a Beginning; 8.1 A Last Chapter; 8.2 Major Conclusions. 8.3 Challenges Ahead8.4 Closing Remarks; Index