ARTES-5.1 – ESA Telecom Technology Workplan ... - Emits - ESA

Annex 2Page 3Ref. Activity Title Procurement Policy Budget(KEUR)3A.023(08.153.11)Objective:Description:Planned TenderIssueMIMO Hardware Demonstrator Open Competitive Tender Type: C 1200 Priority 2 => 2Q2009Implement a hardware demonstrator to prove the feasibility and the benefits of MIMO techniques for satellite networks.Estimated Duration(months)Recent years have seen a dramatic increase in demand for new capacity in wireless networks, both in terms of numbers of users and in terms of enhanced capabilities for individual users. Thisdemand, together with the rise of new techniques for creating and exploiting diversity, has led to a situation in which the performance and design of wireless networks is increasinglydominated by considerations of interference. This issue is exacerbated by the tight limits on bandwidth and transmitter power typical of all wireless systems as well as the need to use smalland easy-to-deploy low-directivity antennas on the user side. For these reasons multi-user detection, which deals with the detection of data in interference channels, has become thecentrepiece of advanced signal processing techniques for enabling capacity growth in wireless networks. The contract (CN 20547) “MIMO Applicability to Satellite Networks” isinvestigating the potentials of MIMO techniques to broadcast to mobile systems. Preliminary outcomes are very promising showing a capacity improvement in the order of 50%.This activity is to demonstrate the advantages of MIMO techniques by building a demonstrator and operate it a realistic environment. The S-band broadcast multimedia to mobile is the targetapplication scenarios.The demonstrator shall implement a complete end-to-end system employing the selected MIMO technique. Of particular importance is also the implementation of a powerful channelemulator capable of faithfully reproducing the key characteristics of the selected satellite (and terrestrial if applicable) system. Both spatial and polarization channel diversity shall be includedtogether with a realistic satellite and user terminal antenna model which are the elements permitting the exploitation of such diversity.The modulator and demodulator unit shall implement the required algorithms capable of exploiting the MIMO channel diversity. The performance in terms of throughput and availability ofthe selected study case will be extensively analysed, after a careful tuning of the algorithm parameters.24