High Speed Downlink Packet Access (HSDPA) – A Means of Increasing Downlink Capacity in WCDMA Cellular Networks
Abstract:
The increasing demand for capacity in order to provide high data rate multimedia services in wireless environments necessitates enhanced radio transmission techniques and network protocol functionality. Such techniques have to be added to already existing mobile cellular networks, e.g. as provided by EDGE. For 3rd generation UMTS networks based on WCDMA, the High Speed Downlink Packet Access (HSDPA) is bein ....etc

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High Speed OFDM Packet Access (HSOPA) also called as super 3G can be said as the successor of HSDPA and HSUPA technologies specified in 3GPP releases 5 and 6. This expected fraction of 3GPP s Long Term Evolution (LTE) upgrade path for UMTS systems has given a totally different air interface system with that of the W-CDMA. The characteristics of HSOPA includes -: · Utilizes 1.25 MHz to 20 MHz bandwidth compared with the 5MHz usage of W-CDMA. · The upload and downlink transfer rates is 50 Mbps and 100Mbps and has a spectral effici ....etc

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Abstract—IEEE 802.16 OFDMA systems have gained much attention for their ability to support high transmission rates and broadband access services. For multiuser environments, IEEE 802.16 OFDMA systems require a resource allocation algorithm to use the limited downlink resource efficiently. The IEEE 802.16 standard defines that resource allocation should be performed with a rectangle region of slots, called a burst. However, the standard does not specify how to construct bursts. In this paper, we propose a heuristic burst construction algorithm ....etc

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High-Speed Downlink Packet Access (HSDPA) (Sometimes known as High-Speed Downlink Protocol Access) is a 3G mobile telephony protocol in the HSPA family, which provides a roadmap for UMTS-based networks to increase their data transfer speeds and capacity. Current HSDPA deployments now support 1.8 Mbit/s, 3.6 Mbit/s, 7.2 Mbit/s and 14.4 Mbit/s in downlink.

Further speed grades are planned for the near future. The networks are then to be upgraded to HSPA Evolved, which provides speeds of 42 Mbit downlink in its first release.

In addition to ....etc

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Abstract
In this paper, interference mitigation through downlinkpower control is considered for Macrocell Femtocell overlay.Specifically, the strong interference in the downlink from thehome base station to a nearby macrocell user should be properlycontrolled such that the quality-of-service of both the macrocelluser and the Femtocell users can be guaranteed. In this work,the fundamental capacity limitation of spatial spectrum sharingamong a macrocell user and a Femtocell user is identified. Adownlink power control problem is formulate ....etc

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I want seminar report on controlling ip spoofing through inter domain packet filters URGENTLY........ ....etc

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PLEASE,SEND ME FULL REPORT AND PPT ON IT. ....etc

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I M VIRAL SHAH.I STUDY IN B.E. LAST YEAR IN COMPUTER.I WANT REPORT ON HSDPA. ....etc

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Presented by:
K.V.Hareesh
G.Venkata Rao
M.Karthik
J.Srikanth
A.Kalyan Joshi


ABSTRACT
 UHF TV channels are traditionally used for television broadcasting where the channels can be regarded static or slowly-varying.
 In this paper, new results on the temporal and spatial characteristics of the wideband UHF mo-bile wireless signals and channels in the Digital Television (DTV) broadcasting UHF frequency bands are presented.
 Our analysis of DTV mobile field measurements confirms that the com ....etc

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What are the uplink and downlink frequency of stratellite..plz give me information immediatly ....etc

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