OFDM
Relay
Cognitive Radio
Multiple Antennas
Resource Allocation
Full Duplex
Spectrum Sensing
Synchronization
Spectrum Sharing
Interference Cancellation
Channel Estimation
Feedback
Heterogeneous Networks
Bi-directional
Energy Harvesting
Stochastic Geometry
HetNet
relay networks
FBMC
Equalization
channel capacity
TVWS
CDMA
interference
in-band full-duplex system
Duplex
MIMO
Ultra Low Power
C-V2V
5G
Reliability
SC-FDMA
interference suppression
D-TDD
CLI
indoor positioning
reinforcement learning
RSRP weighting
- Computation offloading
smart factory
Cell-free
multi-access edge computing
estimated position overlapping
—Device-to-device (D2D)
estimated position updating
mMIMO
control overhead
hybrid
NR positioning
Femtocell
Rat-dependent positioning
frame structure
Zigbee
body area networks
channel estimation error
Handoff
CoMP
User grouping
power uncertainty
ultra-dense small cell network
mode selection
antenna arrays
5G mobile communication
UFMC
resource block management
inter user interference
WVAN
health care
partial overlap
GFDM
Dynamic TDD
Multi-user Receiver
Number of training blocks
Uplink SCMA system
V2X
Vehicular communication
cross-link interference
LTE-TDD
FS-NOMA
Location-based
user fairness
Mode 3
QR Factorization
Metaheuristics
P-NOMA
non-orthogonal multiple access
dynamic HetNet
spectrum partitioning
and 5G networks.
massive connectivity
non-orthogonal multiple access (NOMA)
overloading
DQN
OTDOA
distributed mode
Communication range
resource selection
maximum likelihood method
Resource sharing
Power allocation
packet delay
Myeon-gyun Cho, Hyun-kyu Yu, Han-kyu Cho and Daesik Hong, "A Novel Time Spreading Method for Down-link OFDM-Code Division Multiplexing Systems", IEEE VTC, Sep. 2004
[IEEE VTC]
조회 117345
Status : | Presented |
---|---|
Date : | 2004-09 |
Title : | A Novel Time Spreading Method for Down-link OFDM-Code Division Multiplexing Systems |
Authors : | Myeon-gyun Cho, Hyun-kyu Yu, Han-kyu Cho and Daesik Hong |
Conference : | IEEE Conference Vehicular Technology |
Abstract : | Orthogonal frequency division multiplexing code division multiplexing (OFDM-CDM) using a novel time spreading scheme is proposed as an alternative to multicarrier code division multiple access (MC-CDMA) systems. A residual frequency diversity gain can he fully obtained with OFDM-CDM through the adaptation of the proposed time spreading scheme which has a known frequency-hopping pattern over the whole transmission bandwidth. If there is enough frequency space to hop and the space is larger than the coherent bandwidth of the channel, we can exploit full frequency diversity in any channel environment. Simulation results verify that the proposed method achieves a gain of about 4 dB for BER of 10/sup -3/ compared to the conventional OFDM-CDM, which achieves a similar performance as frequency-interleaved MC-CDMA. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1400356 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...3070ce8213 |
Myeongyun Cho; Hangyu Cho; Sangmin Ro; Daesik Hong; , "A novel time spreading
method for down-link OFDM-code division multiplexing systems," Vehicular
Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th , vol.3, no., pp.
1845- 1848 Vol. 3, 26-29 Sept. 2004
doi: 10.1109/VETECF.2004.1400356
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1400356&isnumber=30412
doi: 10.1109/VETECF.2004.1400356
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1400356&isnumber=30412
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