Department of Electronic Engineering, Tsinghua University, Beijing100084, China
EDA Laboratory, Research Institute of Tsinghua University in Shenzhen, Shenzhen518057, China.
School of Information Science and Technology, Tsinghua University, Beijing100084, China.
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Abstract
When implementing helicoptersatellite communications, periodical interruption of the received signal is a challenging problem because the communication antenna is intermittently blocked by the rotating blades of the helicopter. The helicoptersatellite channel model and the Forward Error Control (FEC) coding countermeasure are presented in this paper. On the basis of this model, Check-Hybrid (CH) Low-Density Parity-Check (LDPC) codes are designed to mitigate the periodical blockage over the helicoptersatellite channels. The CH-LDPC code is derived by replacing part of single parity-check code constraints in a Quasi-Cyclic LDPC (QC-LDPC) code by using more powerful linear block code constraints. In particular, a method of optimizing the CH-LDPC code ensemble by searching the best matching component code among a variety of linear block codes using extrinsic information transfer charts is proposed. Simulation results show that, the CH-LDPC coding scheme designed for the helicoptersatellite channels in this paper achieves more than 25% bandwidth efficiency improvement, compared with the FEC scheme that uses QC-LDPC codes.
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References
[1]
CidE. L., SnchezM. G., AlejosA. V., and FernndezS. G., Measurement, characterization, and modeling of the helicopter satellite communication radio channel, , vol. 62, no. 7, pp. 3776–3785, 2014.10.1109/TAP.2014.2317483
ReeseM. S., BalanisC. A., BlncherC. R., and BarberG. C., Modeling and simulation of a helicopter-mounted satcom antenna array, , vol. 53, no. 2, pp. 51–60, 2011.10.1109/MAP.2011.5949326
LiH. B., SatoM., MiuraA., TairaS., and WakanaH., , Barcelona, Spain, 2004, pp. 2792–2796.
[4]
WilcoxsonD., SleightB., O’NeillJ., and ChesterD., Helicopter ku-band satcom on-the-move, in Proc. 2006 IEEE Military Communications Conference, Washington, DC, USA, 2006, pp. 1–7.10.1109/MILCOM.2006.302291
O’NeillJ., LohA., VelayudhanN., and Har-NoyS., Increased dynamic range multi-rate waveform for mobile satellite communications: Adaptive coding spreading and modulation (acsm), in Proc. 2010 IEEE Military Communications Conference, San Jose, CA, USA, 2010, pp. 357–362.10.1109/MILCOM.2010.5680414
LeeL. N., LiauV., MarhefkaW., and GopalR., Micro satellite terminal-based high data rate communication for rotary wing aircraft, in Proc. 2014 IEEE Military Communications Conference, Baltimore, MD, USA, 2014, pp. 1698–1703.10.1109/MILCOM.2014.279
ErozM., SunF. W., and LeeL. N., An innovative low-density parity-check code design with near-shannon-limit performance and simple implementation,, vol. 54, no. 1, pp. 13–17, 2006.10.1109/TCOMM.2005.861681
TannerR. M., SridharaD., SridharanA., FujaT. E., and CostelloD. J., Ldpc block and convolutional codes based on circulant matrices, , vol. 50, no. 12, pp. 2966–2984, 2004.10.1109/TIT.2004.838370
YueG., PingL., and WangX., Generalized low-density parity-check codes based on Hadamard constraints, , vol. 53, no. 3, pp. 1058–1079, 2007.10.1109/TIT.2006.890694
GouX. G., QiuJ. H., and JiangH. J., Research on antenna blockage from rotor in helicopter satellite communication, (in Chinese), , vol. 39, no. 1, pp. 55–58, 2013.
WilliamsF. J. M. and SloaneN. J. A., . New York, NY, USA: North-Holland Publishing Company, 1981, pp. 26–27.
[15]
AshikhminA. and LitsynS., Simple MAP decoding of first-order Reed-muller and Hamming codes, , vol. 50, no. 8, pp. 1812–1818, 2004.10.1109/TIT.2004.831835
GeG. and YinL., LDPC coding scheme for improving the reliability of multi-level-cell nand flash memory in radiation environments, , vol. 14, no. 8, pp. 10–21, 2017.10.1109/CC.2017.8014343
AshikhminA., KramerG., and ten BrinkS., Extrinsic information transfer functions: Model and erasure channel properties, , vol. 50, no. 11, pp. 2657–2673, 2004.10.1109/TIT.2004.836693
Wang P, Yin L, Lu J. Efficient HelicopterSatellite Communication Scheme Based on Check-Hybrid LDPC Coding. Tsinghua Science and Technology, 2018, 23(3): 323-332. https://doi.org/10.26599/TST.2018.9010038