Báo cáo hóa học: "Research Article Efficient Feedback via Subspace-Based Channel Quantization for Distributed Cooperative " ppt
Báo cáo hóa học: "Research Article Efficient Feedback via Subspace-Based Channel Quantization for Distributed Cooperative " ppt
... Processing
Volume 2008, Article ID 847296, 13 pages
doi:10.1155/2008/847296
Research Article
Efficient Feedback via Subspace-Based Channel
Quantization for Distributed Cooperative Antenna Systems
with ... of SINR for MS1, 3BS-2MS case (ZF),
R
cell
= 600 m,Urban Macro10 m/s
Figure 4: Performance comparison of channel quantization models
(4bCDI: 4-bit -channel direct...
Báo cáo hóa học: " Research Article Efficient Public Key Certificate Management for Mobile Ad Hoc Networks" potx
... Communications and Networking
Volume 2011, Article ID 935457, 11 pages
doi:10.1155/2011/935457
Research Article
Efficient Public Key Certificate Management for
Mobile Ad Hoc Networks
P. Caballero-Gil ... MANETs are described before
introducing some new ideas that conform our proposal. We
may find two main alternatives for the deployment of PKIs
in MANETs in the bibliography: distribut...
Báo cáo hóa học: " Research Article Efficient Data Association in Visual Sensor Networks with Missing Detection" ppt
... which is depicted in Figure 8.
Form Figure 8 we observe that the appr.I inference has a
much higher KL divergence, averaging at 0.3933 for forward
pass and 1.1727 for backward, than that of the ... appr.II
inference, averaging at 0.0127 for forward pass and 0.0129 for
backward. Moreover, the KL divergence of appr.I inference
has much more spikes than that of appr.II, both in forward
a...
Báo cáo hóa học: " Research Article Efficient Dispersion Generation Structures for Spring Reverb Emulation" ppt
... Advances in Signal Processing
Volume 2011, Article ID 646134, 8 pages
doi:10.1155/2011/646134
Research Article
Efficient Dispersion Generation Structures for
Spring Reverb Emulation
Julian Parker
Department ... filters, and, therefore, are ignored for the purpose of
this work.
3. Efficient Dispersion Generating Structures
3.1. Chirp Straightening. In this section we describe a
method...
Báo cáo hóa học: " Research Article Efficient Compensation of Transmitter and Receiver IQ Imbalance in OFDM Systems" pptx
... the compensation of the channel dis-
tortion. Once the IQ imbalance parameters are known, a
standard channel equalizer can then be applied to estimate
and compensate for channel variations in the ... BER
10
−1
10
0
123
Channel taps
BER versus channel tap length
for 16QAM OFDM at SNR
= 20 dB
45
Ideal case
D-FEQ with Rx compensation
D-FEQ with Tx-Rx compensation
(a) BER versus ch...
Báo cáo hóa học: " Research Article Efficient Uplink Modeling for Dynamic System-Level Simulations of Cellular and Mobile Networks" ppt
... for network planning or for coarse
studies to understand the interrelations of new features, for
example, heterogeneous networks [12].
In this work we will present the theoretical framework
for ... Wireless Communications and Networking
Volume 2010, Article ID 282465, 15 pages
doi:10.1155/2010/282465
Research Article
Efficient Uplink Modeling for Dynamic System-Level Simulation...
Báo cáo hóa học: " Research Article Efficient Key Agreements in Dynamic Multicast Height Balanced Tree for Secure Multicast Communications in Ad Hoc Networks" doc
... therefore, it requires high CPU
and memory capabilities to p erform exponential operations.
Unfortunately, mobile nodes with limited resources have
insufficient power to handle the overhead. Therefore, ... and Networking
Volume 2011, Article ID 382701, 15 pages
doi:10.1155/2011/382701
Research Article
Efficient Key Agreements in Dynamic Multicast Height Balanced
Tree for Secure Multicast...
Báo cáo hóa học: "Research Article Efficient Vector-Based Forwarding for Underwater Sensor Networks" ppt
... Wireless Communications and Networking
Volume 2010, Article ID 195910, 13 pages
doi:10.1155/2010/195910
Research Article
Efficient Vector-Based Forwarding for
Underwater Sensor Networks
Peng Xie,
1
Zhong ... the node holds the packet
before forwarding it. We modify Definition 1 and get a new
definition of the desirableness factor for HH-VBF.
Definition 3. For a candidate forwarder F,...
Báo cáo hóa học: "Research Article Efficient MAC Protocol for Subcarrier-Wise Rate Adaptation over WLAN" potx
... (DSLs). Since the wired channel is slowly time-varying,
the receiver can provide reliable channel state information
to the transmitter using robust feedback channel. Therefore,
adaptively loading ... the feedback channel information.
On the other hand, little effort has been made to design effi-
cient protocols for bit loading in wireless networks. Design-
ing an efficient protocol is...
Báo cáo hóa học: "Research Article Efficient Transmission Schemes for Multiuser MIMO Downlink with Linear Receivers and Partial Channel State Information" potx
... 1
Rx
User K
Rx
1
N
Feedback channel
Feedback channel
Figure 1: Block diagram of an MU-MIMO downlink.
A quasistatic Rayleigh flat fading model is assumed for
the channel where the channel gains do ... selection for
MIMO broadcast channels,” IEEE Transactions on Information
Theory, vol. 54, no. 3, pp. 1086–1107, 2008.
[26] M. Eslami and W. A. Krzymie
´
n, “Scheduling for MIMO
b...
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