1. WOMEN Project W ireless 8 O 2.16 M ulti-antenna m E sh N etworks University of Roma “La Sapienza” + University of Roma “Tor Vergata” University of Napoli “Federico II” University of Firenze University of Catania University of Trento

2. Research Units and WPs WP1 deals with system architecture definition and it is leaded by the University of Roma "La Sapienza". WP3 deals with the aspects of Access control and the responsible is the University Firenze WP2 deals with physical layer aspects linked to MIMO technologies and it is leaded by the University of Napoli "Federico II". WP4 deals with networking protocols and setup and it is leaded by the University of Catania. WP5 is responsible for applications, security and trials and is leaded by the University of Trento that has direct access to the WMAN testbed implemented by CREATE-NET.

3. Activities in WP1 WP1- System Architecture T1.1 User and application requirements T1.2 WOMEN System definition T1.3 System refinement

4. Activities in WP2 WP2- Multi-Antenna Transceiver for Mesh Networks T2.1 Multi-Carrier Space-Time codes for broadband fading channels T2.2 Efficient receiver Multi-Antenna Architectures T2.3 Smart Antenna Techniques T2.4 Adaptive beamforming

5. WP3- Space-division multiple Access for QoS guaranteed Broadband connectivity T3.1 Link Adaptation T3.2 H-ARQ Techiniques T3.3 Optimized Scheduling procedures T3.4 Stream control T3.5 Fair allocation T3.6 Mesh connectivity Layer Activities in WP3 T3.5 Mesh connectivity Layer

6. Activities in WP4 WP4- Mesh Networking Protocol T4.1 Adaptive Routing T4.2 Mesh networking autoconfiguration T4.3 Self-Management T4.4 QoS-Management T4.5 Network capacity Analysis T4.6 Interoperability Issues with 802.11

7. Activities in WP5 WP5- Secure Applications, Deployment and Trials T5.1 Security Protocols for Multi-hop wireless networks T5.2 Authentication and identity management T5.3 Multicast vs. Unicast T5.4 Multimedia content delivery T5.5 Scalable Video Coding Techiniques T5.6 Testbeds T5.7 Trials T5.4 Scalable Video Coding Techiniques T5.5 Testbeds T5.6 Trials

8. Time Table

9. Meetings July 2006 (end 1st phase): Where? [Napoli?] November 2006 (end 1st year): Where? [Catania?] April 2007(end 2nd phase): Where? [Firenze?] October 2007 (end 3rd phase): Where? [Trento?] December 2007 (Project end): Where? [Roma]

10. WOMEN Project W ireless 8 O 2.16 M ulti-antenna m E sh N etworks Unit of Roma “La Sapienza” – dip. INFO-COM

11. Research Unit Activities T1.1 Users and Applications requirements T1.2 WOMEN System definition T1.3 System Definition Refinements T2.1 Space-Time Multi Carrier coding for broadband Faded channels T3.3 Optimized Scheduling Procedures T5.2 Authentication and identity management T5.4 Scalable coding techniques for Multimedia signals WP1 WP2 WP3 WP5

12. Research Unit activities in WP1 T1.1 Users and Applications requirements The main goal of this task is to define a set of services and functionalities that the WOMEN system has to support in order to satisfy the requirements of multimedia applications. By starting form the operating scenarios and applications selected for trials, the requirements for the project and the experimental context (intelligent transportation system) will be defined so to make the system able to support the above defined requirements. These requirements will be determined in terms of bit rate, goodput, BER and time latency. Period Months (1-6)

13. Research Unit activities in WP1 T1.2 WOMEN System definition This activity will be focused on: i) the setting up of the overall network and the system architecture (functionalities and protocols) and ii) Identification of methodologies (codes, ideas, HW and SW platforms) that may be used in the WOMEN system so to implement a fully functioning prototype.

14. Research Unit activities in WP1 T1.2 WOMEN System definition The reference scheme is sketched in Figure.

15. Research Unit activities in WP1 T1.2 WOMEN System definition As shown in figure, two different vertical functions are considered to across the entire protocol stack and they influence the WOMEN system: ° Self-Organization: All the main network protocols should be proposed in order to implement distributed algorithm. In particular, Mesh Routers have to be able to self-organize and self-manage with the “near node discovery”, “dynamic channel selection”, “adaptive resource allocation” capabilities. ° QoS Management: Broadband communication and multimedia traffic require to support efficiently differentiate QoS levels. However, it is not worth to try to guarantee the requested QoS at a single stack level, but the approach for wuality should be cross-layer so that the protocols try to guarantee an end-to-end QoS. Period Months (2-6)

16. Research Unit activities in WP1 T1.3 System Definition Refinements The goal of this activity is to adapt the system architecture so to correct possible in congruencies and to mitigate the risks for the project. More in detail, this task will proceed by considering the results of the other tasks to detect the functionalities to be modified. Period Months (6-12) [NOT IN THE FIRST PHASE]

17. Research Unit activities in WP2 T2.1 Space-Time Multi Carrier coding for broadband Faded channels The target is to develop receiver architecture able to optimize jointly space-time coding, modulation and MIMO channel estimation, The main expected outputs are channel estimation error resilient space-time codes and signal-shaping algorithms for interference reduction at transmitter side with interference cancellation procedures at the receiver. Other candidate techniques (i.e., MIMO UWB) will be investigated in order to evaluate the possible gains and losses with respect to multi-carrier systems offered by impulse-radio systems. We expect that the implementation of the algorithm at physical layer will cooperate with strategies adopted at MAC and network layers. Period Months (1-7)

18. Research Unit activities in WP3 T3.3 Optimized Scheduling Procedures It is reasonable to think that the possibility to adopt energy saving procedures, thanks to the use of multi-antenna paradigm, may be improved with scheduling procedures able to take care of channel conditions and traffic load by constraining the maximum delay for the considered service. As a consequence, the main goal is to explore the energy-saving capabilities coming from the simultaneous use of burst data and the time-varying nature of IEEE802.16 channel and diversity gain.

19. Research Unit activities in WP3 T3.3 Optimized Scheduling Procedures In detail, after the selection of the required QoS level, in terms of maximum packet delay, and maximum number of dropped packets, we aim to develop procedures, based on a fair policy, in order to achieve the system requirements by exploiting some of the feature offered by MIMO system at physical layer by minimizing at the same time, the emitted power. Period Months (3-11)

20. Research Unit activities in WP5 T5.2 Authentication and identity management By considering the amount of traffic load and by taking care of different billing for each of the service offered by the WOMEN system, requirements and solutions for privacy and secure transactions will be adopted. In addition algorithms and procedures for authentication when the users require to access the network will develop jointly with protocols for identity management. Issues relating to the easy secure and private management of the various passwords, identities and preferences of the users will also be investigated. Special attention will be given to the design of new AAA algorithms with light computing and communication requirements. Period Months (8-21) [NOT IN THE FIRST PHASE]

21. Research Unit activities in WP5 T5.4 Scalable coding techniques for Multimedia signals In the wireless mesh networks scenario, the classification of video sequences by considering their importance offers the possibility to adopt cross-layer approach o develop algorithms for radio resource management. In addition, broadcast transmission could be adopt to transmit efficiently redundancy information useful to correct decoding errors and to detect the drop of packets.

22. Research Unit activities in WP5 T5.4 Scalable coding techniques for Multimedia signals In detail we aim to develop - Coding and transmission of redundant information to counterbalance errored bit, dangerous if the RLC mode is adopted; Coding and transmission of redudant information to counterbalance packets lost by adopting error concealment strategies and/or adaptive refresh of imagine areas (details) important. -Differentiate transmission of video packets with different priority; in particular, we will focus on the impact of the integration between MAC level and Data partitioning, supported by H.264, that defines till to 3 partitioning level for coded slice. Period Months (12-24) [NOT IN THE FIRST PHASE]