wireless multiple access protocols
Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond
Ngày tải lên :
02/03/2013, 16:59
... Importance of Multiple Access Protocols 59
3.4.2 Medium Access Control in CDMA 60
3.4.3 Conflict-free or Contention-based Access? 62
3.5 Review of Contention-based Multiple Access Protocols 63
3.5.1 ... with multiple access protocols, which
govern access to these resources. The basic multiple access schemes are briefly described
further below in this section, and the importance of the multiple access ... 44
2.5.3 Wireless Local Area Network (WLAN) Standards 46
2.6 Summary 48
3 Multiple Access in Cellular Communication Systems 49
3.1 Multiple Access and the OSI Layers 49
3.2 Basic Multiple Access...
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Báo cáo hóa học: " Research Article Partial Interference and Its Performance Impact on Wireless Multiple Access Networks" potx
Ngày tải lên :
21/06/2014, 11:20
... analyzing the performance
of wireless multiple access protocols.
8. Conclusion
In this paper, we have introduced the notion of partial inter-
ference in wireless multiple access systems and illustrated
the ... on multiple
access networks, we propose an analytical framework to
characterize partial interference for two representative types
of multiple access wireless networks, namely, the IEEE 802.11
Wireless ... Wireless Communications and Networking
Volume 2010, Article ID 735083, 20 pages
doi:10.1155/2010/735083
Research Article
Partial Interference and Its Performance Impact on
Wireless Multiple Access...
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Báo cáo sinh học: " Decentralized estimation over orthogonal multiple- access fading channels in wireless sensor networks-- optimal and suboptimal estimators" pot
Ngày tải lên :
18/06/2014, 22:20
... optimal and suboptimal decentralized estimators in wireless sensor networks over orthogonal multiple-
access fading channels in this paper. Considering multiple- bit quantization for digital transmission, ... the separate source-channel coding scheme is optimal in fading channels with orthogonal multiple- access
protocols, which outperforms AF transmission, a simple joint source-channel coding scheme.
In ... versions will be made available soon.
Decentralized estimation over orthogonal multiple- access fading channels in
wireless sensor networks optimal and suboptimal estimators
EURASIP Journal on...
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báo cáo hóa học:" Decentralized estimation over orthogonal multiple- access fading channels in wireless sensor networks-- optimal and suboptimal estimators" ppt
Ngày tải lên :
20/06/2014, 04:20
... for wireless sensor networks—
part I: G aus s ian case. IEEE Trans. Signal Process. 54(3), 1131–1143 (2006)
5. A Ribeiro, GB Giannakis, Bandwidth-constrained d is t r ibu t ed estimation for wireless ... observations provided by multiple sensor s . However, their
performance degrades dramatically when communication errors cannot be ignored or corrected. On the other
hand, various wireless communication ... Commun. 23(4), 735–744 (2005)
7. H Li, J Fang, Distributed adaptive quantization and estimation for wireless sensor networks. IEEE Signal
Process. Lett. 14(10), 669–672 (2007)
8. J Fang, H Li, Distributed...
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báo cáo hóa học:" Multiple access communications in future-generation wireless networks" potx
Ngày tải lên :
21/06/2014, 17:20
... “Polarization Division Multiple Access With Polarization
Modulation for LOS Wireless Communications” by Bin Cao, Qin-Yu Zhang,
and Lin Jin discusses a potential multiple access and modulation ... in Multiple Access Communications such as new
cooperative MAC protocols; spectrum sharing, and channel assignment
techniques for cognitive radio networks; new results on PHY layer multiple
access ... full text (HTML) versions will be made available soon.
Multiple access communications in future-generation wireless networks
EURASIP Journal on Wireless Communications and Networking 2012,
2012:45...
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Báo cáo hóa học: " Research Article An Adaptive Time-Spread Multiple-Access Policy for Wireless Sensor Networks" pot
Ngày tải lên :
22/06/2014, 19:20
... category of allocation-based protocols are the
time-spread multiple- access (TSMA) protocols which have
been the focus of an increased research volume in the
last decade. These protocols have no coordination ... 2006.
[24] S. Basagni and D. Bruschi, “A logarithmic lower bound for
time-spread multiple- access (TSMA) protocols, ” Wireless Net-
works, vol. 6, no. 2, pp. 161–163, 2000.
[25] D. Miorandi, H P. ... Journal on Wireless Communications and Networking
Volume 2007, Article ID 64238, 8 pages
doi:10.1155/2007/64238
Research Article
An Adaptive Time-Spread Multiple- Access Policy for
Wireless Sensor...
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Tài liệu Lab 11.2.3d Multiple Access Lists Functions (Challenge Lab) pdf
Ngày tải lên :
18/01/2014, 05:20
...
Outgoing access list is ________
Inbound access list is ________
Interface __________
Outgoing access list is ________
Inbound access list is ________
Interface __________
Outgoing access ... Verify the Access Lists
a. Now that the access lists have been applied, they need to be verified.
First, verify what lists have been defined. From a CLI session on one of the routers with access ... of the routers with access
lists, display the access lists with the Boaz#show ip access- lists command. Record the
information about one of the access lists.
_____________________________________________________________________________________...
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Tài liệu Chapter 12 Multiple Access docx
Ngày tải lên :
16/02/2014, 20:20
... polling access method
12.40
Figure 12.22 Time-division multiple access (TDMA)
12.35
Figure 12.20 Logical ring and physical topology in token-passing access method
12.1
Chapter 12
Multiple Access
Copyright ... protocol
12.24
Figure 12.13 Collision and abortion in CSMA/CD
12.38
Figure 12.21 Frequency-division multiple access (FDMA)
12.29
In CSMA/CA, the IFS can also be used to
define the priority of a station...
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Wireless Internet access: 3G vs. WiFi?$ pot
Ngày tải lên :
15/03/2014, 22:20
... of consumers from paid access services to FreeNet
access is significant, this will cannibalize the access revenues earned by service providers offering
wireline or wireless access services. These ... communication
systems (PCS)
12
and used technologies such as time division multiple access (TDMA), code
division multiple access (CDMA) and global system for mobile-communications (GSM). From
1995 ... experience with using wireless broadband access
services.
In addition to the FreeNet movement, there are a number of service providers now looking at
using WiFi as the basis for wireless access over broad...
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Báo cáo hóa học: " Research Article Iterative Fusion of Distributed Decisions over the Gaussian Multiple-Access Channel Using Concatenated BCH-LDGM Codes" potx
Ngày tải lên :
21/06/2014, 07:20
... (ICASSP ’07),pp.
541–544, April 2007.
[24]W.LiandH.Dai,“Distributeddetectioninwirelesssensor
networks using a multiple access channel,” IEEE Transactions
on Signal Processing, vol. 55, no. 3, pp. ... and T. Kwon, “A novel cluster-based
cooperative MIMO scheme for multi-hop wireless sensor
networks,” Eurasip Journal on Wireless Communications and
Networking, vol. 2006, Article ID 72493, 9 pages, ... network,” Eurasip Journal on Wireless Communications
and Networking, vol. 2010, Article ID 343690, 12 pages, 2010.
[12] W. K. G. Seah, A. E. Zhi, and H. P. Tan, Wireless sensor
networks powered...
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Báo cáo hóa học: " Research Article Capacity of Time-Hopping PPM and PAM UWB Multiple Access Communications over Indoor Fading Channels" ppt
Ngày tải lên :
21/06/2014, 22:20
... the capacity analysis given
in Section 3 for a single user to be extended to a multiple-
access system.
4.1. Multiple- access interference model
Asgivenin(4), the received signal is modeled as
r(t)
=
K
k=1
L
l=1
a
lk
(t)X
(k)
l
t ... active in the multiple- access system, the optimal
PPM receiver has a complex structure that takes advantage
of all receiver knowledge regarding the characteristics of
the multiple- access interference ... capacity and number of
users for a multiple access UWB system with PPM over a multipath
fading channel, L
= 2, m = 0.65, G = 100, P
x
=−11 dBm, and SNR
= 15 dB.
a multiple access UWB system with PPM...
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Báo cáo hóa học: " Research Article Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels" ppt
Ngày tải lên :
21/06/2014, 23:20
... spread-spectrum multiple- access
communications over fading channels,” IEEE Transactions on
Communications, vol. 30, no. 5, part 2, pp. 996–1009, 1982.
[3] G. Einarsson, “Coding for a multiple- access frequency-
hopping ... Corporation
EURASIP Journal on Wireless Communications and Networking
Volume 2008, Article ID 346730, 9 pages
doi:10.1155/2008/346730
Research Article
Analysis of Coded FHSS Systems with Multiple Access
Interference ... prior to the FHSS transmission in order to spread
burst errors in the decoder.
We consider a multiple- access FHSS network of K users.
The frequency band is divided into Q bands and users
transmit...
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Báo cáo hóa học: " Research Article Slotted Gaussian Multiple Access Channel: Stable Throughput Region and Role of Side Information" pdf
Ngày tải lên :
21/06/2014, 23:20
... regarding the
traffic on the stability performance of Gaussian multiple-
access channels.
We will focus our attention on a slotted Gaussian
multiple- access channel with K users sending bursty data to
a ... L. Zheng, “Diversity-
multiplexing tradeoff in multiple- access channels,” IEEE
Transactions on Information Theory, vol. 50, no. 9, pp. 1859–
1874, 2004.
6 EURASIP Journal on Wireless Communications ... and T.
P. Coleman, “Capacity of time-slotted ALOHA packetized
multiple- access systems over the AWGN channel,” IEEE
Transactions on Wireless Communication, vol. 3, no. 2, pp. 486–
499, 2004.
[4]...
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Báo cáo hóa học: " Research Article Power and Resource Allocation for Orthogonal Multiple Access Relay Systems" pptx
Ngày tải lên :
22/06/2014, 01:20
... pages
doi:10.1155/2008/476125
Research Article
Power and Resource Allocation for Orthogonal Multiple
Access Relay Systems
Wessam Mesbah and Timothy N. Davidson
Department of Electrical and Computer ... J. Wang
We study the problem of joint power and channel resource allocation for orthogonal multiple access relay (MAR) systems in order
to maximize the achievable rate region. Four relaying strategies ... reproduction in any medium, provided the original work is
properly cited.
1. INTRODUCTION
In multiple access relay (MAR) systems, several source nodes
send independent messages to a destination...
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