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035 _a(RuTPU)RU\TPU\network\22181
035 _aRU\TPU\network\21699
090 _a655851
100 _a20171009d2017 k y0engy50 ba
101 0 _aeng
102 _aUS
105 _ay z 100zy
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aLDPC Coded Angular Modulation Scheme for Cooperative Wireless Networks
_fD. N. K. Dzhayakodi Arachshiladzh
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 10 tit.]
330 _aThis paper investigates a new methodology for soft information forwarding (SIF) based on a novel technique known as soft angular modulation (SAM). In this new relay scheme, the soft symbols are embedded into phases at the relay. This is more advantageous as we refrain to forward real values (under bandwidth constraints) via wireless channels. This makes the proposed scheme practically feasible. The proposed system provides a means of using distributed low-density parity- check (LDPC) coding in conjunction with a new soft encoding scheme (puncturing), which is useful even under indigent source-relay link conditions. This also precludes the amplitudes of generated symbols descent to zero, as happens with most of the existing soft forwarding methods. Ordinarily, such schemes suffer from error propagation to the destination when the signal-to-noise ratio (SNR) of the source-relay link is low; however, our system avoids this problem by regenerating soft versions of the source symbols at the relay. Furthermore, we also propose a computationally efficient formula for log-likelihood ratio (LLR) at the destination. Simulation results demonstrate that the proposed scheme can maintain very good performance under poor source relay SNR conditions.
333 _aРежим доступа: по договору с организацией-держателем ресурса
463 _tIEEE 84th Vehicular Technology Conference (VTC Fall)
_oproceedings, Montreal, Canada, 18–21 September 2016
_v[7881067, 5 p.]
_d2017
610 1 _aтруды учёных ТПУ
610 1 _aэлектронный ресурс
610 1 _aреле
610 1 _aсигнал-шум
610 1 _aдекодирование
610 1 _aмодуляция
610 1 _aпротоколы
610 1 _aслучайные переменные
610 1 _arelays
610 1 _asignal to noise ratio
610 1 _aparity check codes
610 1 _adecoding
610 1 _amodulation
610 1 _aprotocols
610 1 _arandom variables
700 1 _aDzhayakodi Arachshiladzh
_bD. N. K.
_cspecialist in the field of electronics
_cProfessor of Tomsk Polytechnic University
_f1983-
_gDushanta Nalin Kumara
_2stltpush
_3(RuTPU)RU\TPU\pers\37962
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут кибернетики (ИК)
_bКафедра программной инженерии (ПИ)
_h7751
_2stltpush
_3(RuTPU)RU\TPU\col\22918
801 2 _aRU
_b63413507
_c20220317
_gRCR
856 4 0 _uhttps://doi.org/10.1109/VTCFall.2016.7881067
942 _cCF