Weitere Artikel dieser Ausgabe durch Wischen aufrufen
Multicell cooperative processing (MCP) has the potential to boost spectral efficiency and improve fairness of cellular systems. However the typical centralised conception for MCP incurs significant infrastructural overheads which increase the system costs and hinder the practical implementation of MCP. In Frequency Division Duplexing systems each user feeds back its Channel State Information (CSI) only to one Base Station (BS). Therefore collaborating BSs need to be interconnected via low-latency backhaul links, and a Control Unit is necessary in order to gather user CSI, perform scheduling, and coordinate transmission. In this paper a new framework is proposed that allows MCP on the downlink while circumventing the aforementioned costly modifications on the existing infrastructure of cellular systems. Each MS feeds back its CSI to all collaborating BSs, and the needed operations of user scheduling and signal processing are performed in a distributed fashion by the involved BSs. Furthermore the proposed framework is shown to be robust against feedback errors when quantized CSI feedback and linear precoding are employed.
Karakayali MK, Foschini GJ, Valenzuela RA: Network coordination for spectrally efficient communications in cellular systems. IEEE Wireless Communications 2006, 13(4):56-61. 10.1109/MWC.2006.1678166 CrossRef
Catreux S, Driessen PF, Greenstein LJ: Simulation results for an interference-limited multiple-input multiple-output cellular system. IEEE Communications Letters 2000, 4(11):334-336. 10.1109/4234.892193 CrossRef
Shamai S, Zaidel BM: Enhancing the cellular downlink capacity via co-processing at the transmitting end. Proceedings of the IEEE Vehicular Technology Conference (VTC '01), May 2001, Rhodes, Greece 3: 1745-1749.
Spencer QH, Peel CB, Swindlehurst AL, Haardt M: An introduction to the multi-user MIMO downlink. IEEE Communications Magazine 2004, 42(10):60-67. 10.1109/MCOM.2004.1341262 CrossRef
Venkatesan S: Coordinating base stations for greater uplink spectral efficiency in a cellular network. Proceedings of the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '07), September 2007, Athens, Greece
Boccardi F, Huang H: Limited downlink network coordination in cellular networks. Proceedings of the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '07), September 2007, Athens, Greece
Papadogiannis A, Gesbert D, Hardouin E: A dynamic clustering approach in wireless networks with multi-cell cooperative processing. Proceedings of the IEEE International Conference on Communications (ICC '08), May 2008, Beijing, China 4033-4037.
Papadogiannis A, Bang HJ, Gesbert D, Hardouin E: Downlink overhead reduction for multi-cell cooperative processing enabled wireless networks. Proceedings of the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '08), September 2008, Cannes, France
Marsch P, Fettweis G: A framework for optimizing the downlink of distributed antenna systems under a constraint backhaul. Proceedings of the European Wireless Conference (EW '07), April 2007, Paris, France
Parkvall S, Dahlman E, Furuskar A, et al.: LTE-advanced—evolving LTE towards IMT-advanced. Proceedings of the IEEE Vehicular Technology Conference (VTC '08), September 2008, Calgary, Canada
Y. Song, L. Cai, K. Wu, and H. Yang, “Collaborative MIMO Based on Multiple Base Station Coordination,” Contribution to IEEE 802.16m, IEEE C802.16m-07/162, August 2007.
Alcatel Shanghai Bell, Alcatel Lucent, “Collaborative MIMO for LTE-A Downlink,” 3GPP TSG RAN WG1 Meeting 53bis, R1-082501,Warsaw, Poland, June-July 2008.
Papadogiannis A, Hardouin E, Gesbert D: A framework for decentralising multi-cell cooperative processing on the downlink. Proceedings of the 4th IEEE Broadband Wireless Access Workshop (BWA '08), December 2008, New Orleans, La, USA
Love DJ, Heath RW Jr., Lau VKN, Gesbert D, Rao BD, Andrews M: An overview of limited feedback in wireless communication systems. IEEE Journal on Selected Areas in Communications 2008, 26(8):1341-1365. CrossRef
Jafar SA, Srinivasa S: On the optimality of beamforming with quantized feedback. IEEE Transactions on Communications 2007, 55(12):2288-2302. CrossRef
Yoo T, Goldsmith A: On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming. IEEE Journal on Selected Areas in Communications 2006, 24(3):528-541. CrossRef
Peel CB, Hochwald BM, Swindlehurst AL: A vector-perturbation technique for near-capacity multiantenna multiuser communication—part I: channel inversion and regularization. IEEE Transactions on Communications 2005, 53(1):195-202. 10.1109/TCOMM.2004.840638 CrossRef
Kaltenberger F, Gesbert D, Knopp R, Kountouris M: Performance of multi-user MIMO precoding with limited feedback over measured channels. Proceedings of IEEE Global Communications Conference (GLOBECOM '08), December 2008, New Orleans, La, USA
Kountouris M, de Francisco R, Gesbert D, Slock DTM, Sälzer T: Efficient metrics for scheduling in MIMO broadcast channels with limited feedback. Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '07), April 2007, Honolulu, Hawaii, USA 3: 109-112.
CELTIC WINNER+ deliverable : D1.4 Initial Report on Advanced Multiple Antenna Systems. January 2009, http://projects.celtic-initiative.org/winner+/deliverables_winnerplus.html
- Decentralising Multicell Cooperative Processing: A Novel Robust Framework
- Springer International Publishing
EURASIP Journal on Wireless Communications and Networking
Elektronische ISSN: 1687-1499
Neuer Inhalt/© ITandMEDIA, Best Practices für die Mitarbeiter-Partizipation in der Produktentwicklung/© astrosystem | stock.adobe.com