The VTC2009-Spring conference is organized into 11 tracks that cover all technical areas relevant to the conference:

Antennas and Propagation
Indoor/outdoor propagation prediction, indoor/outdoor channel measurements, channel estimation, narrowband and wideband channel characterization and modelling, prediction and simulation tools, antenna design, RF subsystems.


Transmission Technologies
Modulation, source/channel coding, performance analysis, channel estimation, iterative processing, interference mitigation, multi-user detection, equalization, synchronization, adaptive modulation and coding, ultra wideband, multi-carrier systems, multi-user and cooperative diversity.


Multiple Antenna Systems and Space-Time Processing
Smart antennas, array processing, MIMO antenna systems, multi-user MIMO, space-time coding, distributed antenna arrays. receiver design, implementations and prototypes, MIMO systems performance.


Cognitive Radio
Spectrum sensing, cooperative sensing, dynamic spectrum access, spectrum sharing, spectrum policies, cognitive networks, cognitive enables, TV white spaces, secondary wireless networks, cognitive radio prototypes, spectrum mobility, characterization and modelling, spectrum measurements, cognitive protocols and algorithms, PHY and MAC layer design, co-existence of primary and secondary radio networks.


Wireless Access
3G (UMTS, HSPA, CDMA2000, 1x EV-DO, TD-SCDMA), 3G long term evolution, wireless PANs, LANs, MANs and WANs (e.g. IEEE802.15, 11,16, 20), DVB and DAB systems, multiple access, new air interfaces, radio resource management, MAC/PHY cross-layer design, power control algorithms, wireless multicasting, channel and power allocation, coexistence of multiple radio access techniques, cross-layer design, , multi-hop cellular management, scheduling and statistical multiplexing, performance evaluation, context-aware and ambient access protocols.


Wireless Networks
Resource management, cooperative networks, mobile/wireless quality-of-Service (QoS), mobile/wireless network security and privacy; mobility and handoff management, mobile and wireless IP, middleware, IMS, wired/wireless convergence, mobile/wireless network modelling and performance evaluation, analysis and simulation, mobile/wireless network performance measurements, heterogeneous wireless network architectures, wireless traffic characterization and modelling.


Ad-Hoc and Sensor Networks
Wireless ad-hoc and sensor networks, including: medium access control, routing and transport protocols, opportunistic networks, cross-layer protocol design, performance and quality-of-service, energy management, operating systems, network security, information processing and aggregation, middleware and programming, simulation and emulation, gateways and inter-working, test-bed deployment and experiences.


Mobile Satellite and Positioning Systems
Mobile broadband satellite architectures; mobile broadcast systems, satellite bus/payload systems, ground (earth-terminal) systems, mobile & aeronautical maritime systems, Ka band and higher frequency systems, system integration and interoperability, use of small satellites clusters, hybrid orbits, and high altitude platforms (HAPs), DVB and return channel via satellite (RCS) networks, low earth orbit (LEO) communications satellite networks, satellite network control and resource management, traffic and quality of service (QoS) management, QoS-oriented solutions, satellite system capacity optimization, satellite and terrestrial navigation and positioning techniques.


Transportation
Intelligent transportation systems, railroad signalling, communication and control; vehicular electronics, vehicle traction power control/conversion, power systems; mobility management, mobility and vehicle traffic models, in-car electronics and embedded integration, vehicle stability controls, engine control modules, safety control systems.


Vehicular Communications
Mobile/wireless communications for vehicular safety applications, wireless/mobile system applications for transportation control and routing, mobile/wireless systems for transportation logistics, digital maps and location technologies, smart speed controls, vehicular communications and applications (toll collection, traffic information, wireless diagnosis, etc), roadside infrastructure.


Wireless Services and Applications
Context aware service and applications, information distribution services, localization services, broadband Internet services, multimedia applications and messaging, service architectures and middleware, service creation, composition and security.