Results 21 to 30 of about 2,576 (163)
Coplanar Turbo‐FSK: A Flexible and Power Efficient Modulation for the Internet‐of‐Things
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 As the Internet‐of‐Things (IoT) has expanded, multiple solutions have attempted to address the issues of the Low Power Wide Area (LPWA) networks physical layer. In a previous work, we proposed the Turbo‐FSK, a constant envelope modulation with orthogonal alphabet that allows the receiver to operate at very low levels of power (high sensitivity ...
Yoann Roth +4 more
wiley +1 more source
Turbo Decoding and Detection for Wireless Applications [PDF]
, 2007 A historical perspective of turbo coding and turbo transceivers inspired by the generic turbo principles is provided, as it evolved from Shannon’s visionary predictions.
Hanzo, L., Robertson, P, Woodard, J.P.
core +1 more source
Superposition Coded Modulation Based Faster‐Than‐Nyquist Signaling
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 A structure of faster‐than‐Nyquist (FTN) signaling combined with superposition coded modulation (SCM) is considered. The so‐called FTN‐SCM structure is able to achieve the constrained capacity of FTN signaling and only requires a low detection complexity. By deriving a new observation model suitable for FTN‐SCM, we offer the power allocation based on a
Shuangyang Li +5 more
wiley +1 more source
IEEE Photonics Journal, 2019 In this paper, a low-density parity check (LDPC) coded GFDM with high-level modulation scheme is proposed for more flexible and advanced multicarrier modulation in intensity-modulated/direct-detection (IM/DD) optical systems.
Dong Guo +10 more
doaj +1 more source
Nonuniform Code Multiple Access
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 For sparse code multiple access advanced (SCMAA), the quality of initial information on each resource node and the convergence reliability of the detected user in each decision process were unsatisfactory at the message passing algorithm (MPA) receiver. Driven by these problems, this paper proposes a nonuniform code multiple access (NCMA) scheme.
Cheng Yan +3 more
wiley +1 more source
Journal of Engineering, Volume 2016, Issue 1, 2016., 2016 This paper presents a possible simulation of negative effects in the optical transmission medium and an analysis for the utilization of different signal processing techniques at the optical signal transmission. An attention is focused on the high data rate signal transmission in the optical fiber influenced by linear and nonlinear environmental effects
Filip Čertík +2 more
wiley +1 more source
Turbo Trellis Coded Modulation (TTCM) with Imperfect Phase Reference
Electrica, 2019 In this paper, we investigate the performance of Turbo Trellis Coded Modulation (TTCM) over AWGN, and Rician channels and assume that phase disturbance is available.
Osman N. Ucan, Onur Osman
doaj +2 more sources
Adaptive Turbo Trellis Coded Modulation Aided Distributed Space-Time Trellis Coding for Cooperative Communications [PDF]
2010 IEEE 71st Vehicular Technology Conference, 2010 In this contribution, we propose an adaptive Turbo Trellis Coded Modulation (TTCM) aided Distributed Space-Time Trellis Coding (STTC) scheme for cooperative communication over quasi-static Rayleigh fading channels. An adaptive TTCM (ATTCM) scheme is employed by the source node during the first transmission period for reliably conveying the source bits ...
Soon Xin Ng +3 more
openaire +1 more source
Performance and Complexity Evaluation of Iterative Receiver for Coded MIMO‐OFDM Systems
Mobile Information Systems, Volume 2016, Issue 1, 2016., 2016 Multiple‐input multiple‐output (MIMO) technology in combination with channel coding technique is a promising solution for reliable high data rate transmission in future wireless communication systems. However, these technologies pose significant challenges for the design of an iterative receiver.
Rida El Chall +4 more
wiley +1 more source
IEEE Access, 2019 In this paper, we study the resource allocation problem, including the joint consideration of user grouping and power allocation, of an, underlay cognitive radio (CR) network employing non-orthogonal multiple access (NOMA), which is referred to as the ...
Wei Liang +4 more
doaj +1 more source