Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Mao, Chao"'
Publikováno v:
ISPACS
A transformation technique has been designed, where the encoding result of the polar code can be transfered to an low-density parity-check (LDPC) code. The belief-propagation decoding can be applied to the received sequence according to the parity-ch
Publikováno v:
VTC-Fall
We construct polar codes for OFDM systems over the frequency selective channel. The channel coefficients are assumed to be available to the transmitter such that the encoder of polar codes can correctly distinguish the input reliabilities and make pr
Publikováno v:
IEEE Transactions on Broadcasting. 63:123-133
In the orthogonal frequency division multiplexing communications, bit flipping can be used for the reduction of peak-to-average-power ratio (PAPR). Error-correction coding can be used to relieve the degradation of bit-error rates (BERs) resultant fro
Publikováno v:
IEEE Communications Letters. 19:1476-1479
A construction of physical-layer Raptor (PLR) codes based on protographs is proposed. We first set up a sequence of signal-to-noise ratios (SNRs). For each SNR, we employ a modified protograph EXIT analysis to find the extra check nodes in addition t
Autor:
Chang, Bei-Hao, Chang, Chia-Fu, Su, Pin-Wen, Yeh, I-Hsien, Cheng, Kai-Chuan, Lin, Ying-Chen, Lin, Mao-Chao
We propose to employ a multilevel detection (MLDT) technique to allow multiple users which respectively transmit messages over independent fading channels to share the same resource, e.g., the same signature sequence in the CDMA (code division multip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63282e8baaedfa0098aaf5f356a09e91
http://arxiv.org/abs/1807.10917
http://arxiv.org/abs/1807.10917
Publikováno v:
IEEE Communications Letters. 18:491-494
It is known that the Raptor code can be constructed to achieve a rate close to the capacity of the binary-input AWGN (BIAWGN) channel with a fixed signal-to-noise ratio (SNR). In this letter, we propose a constructive approach of designing the Raptor
Publikováno v:
IEEE Communications Letters. 17:737-740
In this letter, we propose a noncoherent communication system that can be used in the communication environment in which the frequency estimation is only roughly obtained and the phase synchronization is not employed. The transmitter side has the ser
Publikováno v:
IEEE Transactions on Information Theory. 52:3738-3746
In this correspondence, it is shown that some convolutional codes with distinct memory sizes of minimal encoders are equivalent in the sense that the minimal trellises of these codes are the shifted versions of one another. For an (n,k) binary convol
Publikováno v:
IEEE Transactions on Communications. 50:1906-1917
It is already known that a trellis code T, which is constructed by using the encoder of a convolutional code C with short constraint length followed by a delay processor and a signal mapper, is equivalent to a trellis code with large constraint lengt
Publikováno v:
WCNC
The A ∗ algorithm is an efficient method for decoding short linear block code based on tree search. However, it may suffer very long decoding latency in the worst-case channel condition. In this paper, we propose to apply some restrictions on the H