Sat, 26 Jul 2008 06:06:13 BST CiteULike: dcastro's 3g http://www.citeulike.org/user/dcastro/tag/3g CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/2883744 <i>Communications Magazine, IEEE, Vol. 41, No. 7. (2003), pp. 58-65.</i><br /><br />At present, WLANs supporting broadband multimedia communications are being developed and deployed around the world. Standards include HIPERLAN/2 defined by ETSI BRAN and the 802.11 family defined by the IEEE. These systems provide channel adaptive data rates up to 54 Mb/s (in a 20 MHz channel spacing) over short ranges up to 200 m. The HIPERLAN/2 standard also specifies a flexible radio access network that can be used with a variety of core networks, including UMTS. It is likely that WLANs will become an important complementary technology to 3G cellular systems and will typically be used to provide hotspot coverage. In this article the complementary use of WLANs in conjunction with UMTS is presented. In order to quantify the capacity enhancement and benefits of cellular/hotspot interworking we have combined novel ray tracing, software-simulated physical layer performance results, and optimal base station deployment analysis. The study focuses on an example deployment using key lamppost mounted WLAN access points to increase the performance (in terms of capacity) of a cellular network. Hotspot wireless LANs to enhance the performance of 3G and beyond cellular networks A Doufexi E Tameh A Nix S Armour A Molina doi:10.1109/MCOM.2003.1215640 Communications Magazine, IEEE, Vol. 41, No. 7. (2003), pp. 58-65. 2008-06-11T20:21:43-00:00 2003 Communications Magazine, IEEE 41 7 58 65 3g access cellular network wireless http://www.citeulike.org/user/dcastro/article/2807763 <i>Communications Magazine, IEEE, Vol. 41, No. 3. (2003), pp. 120-124.</i><br /><br />This article introduces the vision and requirements for future development of mobile communications systems, and discusses several key enabling technologies such as modulation and multiple access schemes, multiple antenna techniques, and an IP-based network, considered important to realize this vision in real-world systems. Beyond 3G: vision, requirements, and enabling technologies Yungsoo Kim Byung Jeong Jaehak Chung Chan-Soo Hwang JS Ryu Ki-Ho Kim Young Kim doi:10.1109/MCOM.2003.1186555 Communications Magazine, IEEE, Vol. 41, No. 3. (2003), pp. 120-124. 2008-05-17T14:17:20-00:00 2003 Communications Magazine, IEEE 41 3 120 124 3g mobile network wireless http://www.citeulike.org/user/dcastro/article/2652786 <i>Communications Magazine, IEEE, Vol. 38, No. 7. (2000), pp. 78-87.</i><br /><br />The rapid growth of wireless voice subscribers, the growth of the Internet, and the increasing use of portable computing devices suggest that wireless Internet access will rise rapidly over the next few years. Rapid progress in digital and RF technology is making possible highly compact and integrated terminal devices, and the introduction of sophisticated wireless data software is making wireless Internet access more user-friendly and providing more value. Transmission rates are currently only about 10 kb/s for large cell systems. Third-generation wireless access such as WCDMA and the evolution of second-generation systems such as TDMA IS-136+, EDGE, and CDMA IS-95 will provide nominal bit rates of 50-384 kb/s in macrocellular systems. This article discusses packet data transmission rates of 2-5 Mb/s in macrocellular environments and up to 10 Mb/s in microcellular and indoor environments as a complementary service to evolving second- and third-generation wireless systems. Dynamic packet assignment for high-efficiency resource management and packet admission; OFDM at the physical layer with interference suppression, space-time coding, and frequency diversity; as well as smart antennas to obtain good power and spectral efficiency are discussed in this proposal. Flexible allocation of both large and small resources also permits provisioning of services for different delay and throughput requirements Beyond 3G: wideband wireless data access based on OFDM and dynamic packet assignment J Chuang N Sollenberger doi:10.1109/35.852035 Communications Magazine, IEEE, Vol. 38, No. 7. (2000), pp. 78-87. 2008-04-11T07:34:49-00:00 2000 Communications Magazine, IEEE 38 7 78 87 3g access data ofdm wideband wireless http://www.citeulike.org/user/dcastro/article/2421349 <i>Vehicular Technology Conference, 1999 IEEE 49th, Vol. 1 (1999), pp. 351-355 vol.1.</i><br /><br />Code division multiple access (CDMA) is a common access scheme among all major proposals for third generation cellular standards. The objective of this paper is to show the performance benefits of open loop (which do not adapt transmission based on the channel to the mobile) and closed loop (which do adapt based on the channel to the mobile) transmit diversity methods for CDMA. We examine orthogonal transmit diversity (OTD) (an open loop method), and transmit adaptive arrays (TXAA) (a closed loop method) A comparison of base station transmit diversity methods for third generation cellular standards K Rohani M Harrison K Kuchi doi:10.1109/VETEC.1999.778075 Vehicular Technology Conference, 1999 IEEE 49th, Vol. 1 (1999), pp. 351-355 vol.1. 2008-02-24T13:00:57-00:00 1999 Vehicular Technology Conference, 1999 IEEE 49th 1 351 355 vol.1 3g cellular diversity standards transmission http://www.citeulike.org/user/dcastro/article/2421333 <i>Personal Communications, IEEE [see also IEEE Wireless Communications], Vol. 6, No. 3. (1999), pp. 6-7.</i> GUEST EDITORIAL The Evolution of TDMA to 3G U Amin S Chennakeshu doi:10.1109/MPC.1999.772973 Personal Communications, IEEE [see also IEEE Wireless Communications], Vol. 6, No. 3. (1999), pp. 6-7. 2008-02-24T12:54:23-00:00 1999 Personal Communications, IEEE [see also IEEE Wireless Communications] 6 3 6 7 3g cellular evolution radio tdma wireless