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4 results for "mimo wireless"
Selected Topics in WiMAX By Gianni Pasolini
eBook (PDF): $9.99
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In June 2001, operators and equipment vendors in the communications ecosystem founded the nonprofit WiMAX Forum, an industry-led organization aimed at harmonizing broadband wireless access standards.... More > Nowadays, about 10 years later, the WiMAX technology is a mature and affordable solution for high-speed IP-based 4G mobile broadband, fully supporting bandwidth-intensive services,such as high-speed Internet access and television, as well as less bandwidth-demanding but more latency-sensitive services, such as voice-over-IP calls. In this book a collection of selected papers is presented, which covers several aspects of the WiMAX technology, with particular reference to multiuser multiple input multiple output diversity techniques,peak-to-average power ratio, mesh architectures, handover mechanisms, coordinated authentication in a heterogeneous network environment and multicast /broadcast re-keying algorithms.< Less
IEEE 802.11ac: High-impact Technology - What You Need to Know: Definitions, Adoptions, Impact, Benefits, Maturity, Vendors By Kevin Roebuck
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IEEE 802.11ac is a wireless standard of 802.11 currently under development which will provide high throughput Wireless Local Area Networks (WLAN) below 6 GHz (i.e., what is commonly known as the 5... More > GHz band). Theoretically, this specification will enable multi-station WLAN throughput of at least 1 gigabit per second (1 Gbit/s) and a maximum single link throughput of at least 500 megabit per second (500 Mbit/s). This is accomplished by extending the air interface concepts embraced by 802.11n: wider RF bandwidth (up to 160 MHz), more MIMO spatial streams (up to 8), multi-user MIMO, and high-density modulation (up to 256 QAM). This book is your ultimate resource for IEEE 802.11ac. Here you will find the most up-to-date information, analysis, background and everything you need to know.< Less
HSPA+ - Evolved High-Speed Packet Access: High-impact Strategies - What You Need to Know: Definitions, Adoptions, Impact, Benefits, Maturity, Vendors By Kevin Roebuck
Paperback: $39.95
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HSPA+, or Evolved High-Speed Packet Access, is a technical standard for wireless, broadband telecommunication. HSPA+ was first defined in the technical standard 3GPP release 7. HSPA+ provides High... More > Speed Packet Access data rates up to 84 Megabits per second (Mbit/s) on the downlink and 22 Mbit/s on the uplink through the use of a multiple-antenna technique known as MIMO (for “multiple-input and multiple-output”) and higher order modulation (64QAM). MIMO on CDMA based systems acts like virtual sectors to give extra capacity closer to the mast. The 84 Mbit/s and 22 Mbit/s represent theoretical peak sector speeds. The actual speed for a user will be lower. At cell edge and even at half the distance to the cell edge there may only be a slight increase compared with 14.4 Mbit/s HSDPA unless a channel wider than 5 MHz is used.< Less
HSPA+ - Evolved High-Speed Packet Access: High-impact Strategies - What You Need to Know: Definitions, Adoptions, Impact, Benefits, Maturity, Vendors By Kevin Roebuck
eBook (PDF): $39.95
Download immediately.
HSPA+, or Evolved High-Speed Packet Access, is a technical standard for wireless, broadband telecommunication. HSPA+ was first defined in the technical standard 3GPP release 7. HSPA+ provides High... More > Speed Packet Access data rates up to 84 Megabits per second (Mbit/s) on the downlink and 22 Mbit/s on the uplink through the use of a multiple-antenna technique known as MIMO (for “multiple-input and multiple-output”) and higher order modulation (64QAM). MIMO on CDMA based systems acts like virtual sectors to give extra capacity closer to the mast. The 84 Mbit/s and 22 Mbit/s represent theoretical peak sector speeds. The actual speed for a user will be lower. At cell edge and even at half the distance to the cell edge there may only be a slight increase compared with 14.4 Mbit/s HSDPA unless a channel wider than 5 MHz is used.< Less