hsdpahsupa for umts high speed radio access for mobile communications pdf
hsdpahsupa for umts high speed radio access for mobile communications
Ngày tải lên :
01/06/2014, 09:38
... America.
WCDMA radio access has evolved strongly alongside high- speed downlink packet
access (HSDPA) and high- speed uplink packet access (HSUPA), together called high-
speed packet access (HSPA). ... High- Speed Downlink Packet Access
HSPA High- Speed Packet Access
HSUPA High- Speed Uplink Packet Access
Abbreviations xvii
Higher cell capacity and higher spectral efficiency are required to provide higher ... High- Speed Dedicated Physical Control CHannel
HS-DSCH High- Speed Downlink Shared CHannel
HS-PDSCH High- Speed Physical Downlink Shared CHannel
HS-SCCH High- Speed Shared Control CHannel
HSDPA High- Speed...
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wcdma for umts radio access for third generation mobile communications
Ngày tải lên :
03/06/2014, 01:37
... WCDMA
FOR
UMTS
Radio Access for Third Generation
Mobile Communications
Third Edition
Edited by
Harri Holma and Antti Toskala
Both ... depicts packet access and presents the performance of packet
protocols of WCDMA. Chapter 11 presents the significant Release 5 feature, High- Speed
Downlink Packet Access, HSDPA, and its perform ance. ... all-IP
10 WCDMA for UMTS
guidelines for radio network dimensioning, gives an example of detailed capacity and
coverage planning, and covers GSM co-planning. Chapter 9 covers the radio resource
management...
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Báo cáo hóa học: " Research Article Pulse Interval Modulation for Ultra-High Speed IR-UWB Communications Systems" pdf
Ngày tải lên :
21/06/2014, 08:20
... “Orthonormal
pulses for high data rate communications in indoor UWB
systems,” IEEE Communications Letters, vol. 9, no. 5, pp. 405–
407, 2005.
[4]J.A.N.daSilvaandM.L.R.deCampos,“Methodfor
obtaining ... modern communication systems place high
demands on low power consumption, high- speed trans-
mission, and anti-interference characteristics. Therefore,
impulse radio ultra-wideband (IR-UWB) [1]systemshave
recently ... and A. S. Madhukumar, “Combining OOK with
PSM modulation for TH-UWB radio systems: a performance
analysis,” EURASIP Journal on Wireless Communications and
Networking, vol. 2008, 2008.
[9] C. J....
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Báo cáo hóa học: " Research Article Development of Long-Range and High-Speed Wireless LAN for the Transmission of Telemedicine from Disaster Areas" pdf
Ngày tải lên :
22/06/2014, 06:20
... rate for
video signal. CBR and VBR stand for constant bit rate and
variable bit rate, respectively. SIF stands for source input
format. HalfD1 stands for video size of 352
× 480 pixels for
one ... to be used for telemedicine [9], and there may
be more.
Beside applications of satellite communications in dis-
asters, use of WiFi and Worldwide Interoperability for Mi-
crowave Access (WiMAX) ... assumed that WiMAX can provide broad-
band wireless access (BWA) up to 50 km between fixed sta-
tions and 5–15 km for mobile stations. And it can provide
high- transmission rates of up to 70 Mbps [12,...
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Tài liệu 68 Array Processing for Mobile Communications pdf
Ngày tải lên :
16/12/2013, 04:15
... Center for Telecom-
munications and Information Systems Laboratory, Stanford University, Stanford, CA, June
1994.
[2] Second workshop on smart antennas in wireless mobile communications, Center for ... selection performance analysis of a switched
multi-beamantenna systemin mobile communications environments, Stanford, CA,July 1995.
Second workshop on Smart Antennas in Wireless Mobile Communications.
[28] ... Telecom-
munications and Information Systems Laboratory, Stanford University, Stanford, CA, July
20-21, 1995.
[3] Third workshop on smart antennas in wireless mobile communications, Center for Telecom-
munications...
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Báo cáo hóa học: " Research Article Interference Robust Transmission for the Downlink of an OFDM-Based Mobile Communications System" docx
Ngày tải lên :
22/06/2014, 06:20
... zero-
forcing reception, particularly for high SNRs.
4.2. Closed-form BEP calculation for ZF-SAIC
using M-ary ASK for transmission over
Rayleigh fading channels
In the following, we derive closed form ... case.
However, also for this modulation and coding scenario an in-
crease in DIR boosts the performance of our approach. For a
DIR of at least 5 dB the conventional scheme is outperformed
for high
E
b
/N
0
by ... planning. Therefore, system capacity is limited by interference, which is particularly crucial for mobile ter-
minals with a single receive antenna. Nevertheless, next generation mobile communications...
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Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond
Ngày tải lên :
02/03/2013, 16:59
... Datagram Protocol (for IP)
UE User Equipment
UED Unequal Error Detection
UEP Unequal Error Protection
UMTS Universal Mobile Telecommunications System
UTRA UMTS Terrestrial Radio Access or Universal ... Multiple Access
RAN Radio Access Network
RAP Random Access Protocol
RCMA Reservation-Code Multiple Access
RES Reservation State
RF Radio Frequency
RHS Right Hand Side (of an equation)
RLC Radio ... detail.
Multiple Access Protocols for
Mobile Communications
GPRS, UMTS and Beyond
Alex Brand
Swisscom Mobile, Switzerland
Hamid Aghvami
King’s College London, UK
SYMBOLS
A[t] Slots available for contention...
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Tài liệu Báo cáo khoa học: "A HARDWARE ALGORITHM FOR HIGH SPEED MORPHEME EXTRACTION AND ITS IMPLEMENTATION" pptx
Ngày tải lên :
21/02/2014, 20:20
... algorithm
for high speed morpheme extraction, and also de-
scribes its implementation on a specific machine.
This machine,
MEX.I,
is designed as the first step
313
A HARDWARE ALGORITHM
FOR HIGH ... be-
lieve it is suitable for VLSI implementation. Ac-
tually, its VLSI implementation is in progress. A
high speed morpheme extraction VLSI will im-
prove the performance of such text processing ... Step 2 for Procedure 1 are implemented in
each state for (a), (b), (c), (d), (e),
and
so on.
In state (a) for Fig. 4, the index memory's out-
put expresses the address range for the...
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Báo cáo khoa học: "Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering" pdf
Ngày tải lên :
08/03/2014, 04:22
... created noun similarity list.
Acknowledgement
We wish to thank USC Center for High Performance
Computing and Communications (HPCC) for help-
ing us use their cluster computers.
References
Banko, M. ... Association for Computational Linguistics
Randomized Algorithms and NLP: Using Locality Sensitive Hash Function
for High Speed Noun Clustering
Deepak Ravichandran, Patrick Pantel, and Eduard Hovy
Information ... Interestingly, cosine similarity is
widely used in NLP for various applications such as
clustering.
In this paper, we perform high speed similarity
list creation for nouns collected from a huge web
corpus....
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Lte For Umte Ofdma And Scfdma Based Radio Access pdf
Ngày tải lên :
08/03/2014, 09:20
... Keying
HRPD High Rate Packet Data
HSDPA High Speed Downlink Packet Access
HS-DSCH High Speed Downlink Shared Channel
HSGW HRPD Serving Gateway
HSPA High Speed Packet Access
HS-PDSCH High Speed Physical ... Discontinuous Transmission and Reception (DTX/DRX) 400
LTE for UMTS –
OFDMA and SC-FDMA Based
Radio Access
LTE for UMTS: OFDMA and SC-FDMA Based Radio Access Edited by Harri Holma and Antti Toskala
© ... at architecture
24
LTE for UMTS – OFDMA and SC-FDMA Based Radio Access
1.9 LTE-Advanced
International Mobile Telecommunications-Advanced (IMT-Advanced) is a concept for mobile
systems with capabilities...
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Báo cáo hóa học: "Research Article Design of an Omnidirectional Multibeam Transmitter for High-Speed Indoor Wireless Communications" doc
Ngày tải lên :
21/06/2014, 17:20
... of configuration E for light undergo-
ing up to five reflections.
power uniformity of the transmitter has yet to be optimized.
For high performance wireless diffuse links with uniform
power illumination ... receivers for high- speed infrared
wireless communication,” IEEE Communications Magazine,
vol. 36, no. 12, pp. 88–94, 1998.
[15] T. J. Svetla and M. Kavehrad, “Multispot diffusing config-
uration for ... view as
well as the power receiving performance.
A prototype multibeam transmitter suitable for produc-
ing uniform, near hemisphere or 180 degree, high speed,
and long distance infrared radiation...
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Báo cáo hóa học: " Research Article VLSI Implementation of a Fixed-Complexity Soft-Output MIMO Detector for High-Speed Wireless" pptx
Ngày tải lên :
21/06/2014, 17:20
... Hence, the former one is
assumed to target high- end users willing to pay more in
area and power for performance (e.g., laptops). The MMSE
single-mode detector is in favor of low-end users for connec-
tivity ... low-complexity MIMO symbol detector with close-Maximum a posteriori performance for the emerging
multiantenna enhanced high- speed wireless communications. The VLSI implementation is based on a novel MIMO ... March 2007.
[16] D. Wu, J. Eilert, and D. Liu, “Implementation of a high- speed
MIMO soft-output symbol detector for software defined
radio, ” Journal of Signal Processing Systems. In press.
[17] C....
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Báo cáo hóa học: " Research Article Assessment of Network Layouts for CDMA Radio Access" pdf
Ngày tải lên :
21/06/2014, 23:20
... PERFORMANCE EVALUATION
Radio network performance can be measured with multiple
performance indicators. These can be used to measure
the coverage, interference, and system performance. The
performance ... effect of RF
performance to the final system performance.
3.3. System simulations
Mobile radio system performance is affected by random user
locations, mobility of users, fading on radio channel ... layout
provides clearly the highest site area.
5. CONCLUSIONS AND DISCUSSION
In this paper, the performances of different tessellations were
evaluated for CDMA radio access scheme as a function...
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