A Novel Hybrid ARQ Scheme Using Packet Coding
نویسنده
چکیده
The 5th generation (5G) mobile communication system requires high throughput for high quality user experience. In this paper, a novel Hybrid Automatic Repeat Request (HARQ) scheme based on packet coding is proposed. The idea is that a parity block is transmitted when code block error rate (CBER) of all turbo code blocks of transmission packet is less than or equal to the threshold of P0 and greater than zero. Fewer resources are occupied when parity block is retransmitted, which can improve the throughput of system. The parity block is generated by applying ‘XOR’ operation on all turbo code blocks in the packet. Besides, an iterative decoding algorithm for packet coding is presented in detail. Simulation results show that the proposed HARQ scheme yields higher throughput than traditional ones. Keywords—HARQ, Packet Coding, Single Parity Code, Iterative Decoding, Throughput
منابع مشابه
Sequential decoding with an efficient incremental redundancy ARQ scheme
In this paper, sequential decoding is analyzed in conjunction with an efficient incremental redundancy ARQ scheme using punctured convolutional coding. With the incremental redundancy ARQ scheme, whenever the decoding time for a given data packet exceeds some predetermined value T max, decoding of that data packet is stopped and incremental redundancy bits are provided by the transmitter, a few...
متن کاملProactive Retransmission and Buffer Management for Layered Video Transmission over Wireless Channel
Hybrid FEC/ARQ, which is a mixture of forward error correction (FEC) and automatic repeat request (ARQ), is a well-known technique aiming for packet-loss recovery to guarantee quality of service (QoS) for real-time communications. In this paper, focusing on layered video transmission over wireless network environment, we propose a proactive retransmission scheme for hybrid FEC/ARQ. In the propo...
متن کاملArq Techniques for Mimo Communication Systems
ARQ TECHNIQUES FOR MIMO COMMUNICATION SYSTEMS Zhihong Ding Electrical and Computer Engineering Doctor of Philosophy Multiple-input multiple-output (MIMO) communication systems employ multiple antennas at the transmitter and the receiver. Multiple antennas provide capacity gain and/or robust performance over single antenna communications. Traditional automatic-repeat-request (ARQ) techniques dev...
متن کاملAn Adaptive Hybrid ARQ for Efficiency-Reliability Tradeoff in Noisy Long Delay Networks
In this paper, we study the efficiency-reliability tradeoff issue of hybrid ARQ (HARQ) scheme in noisy long delay network such as satellite-terrestrial hybrid network, where both long wireless round trip time and time-varying error characteristics have to be considered. A new adaptive HARQ scheme is proposed to acquire efficiency-reliability joint optimization. By adjusting coding rate accordin...
متن کاملAdvanced Hybrid-ARQ Receivers for Broadband MIMO Communications
Multiple input multiple output (MIMO) and hybrid–automatic repeat request (ARQ) mechanisms play a key role in the evolution of current wireless communications systems towards high data rate wireless packet access. In MIMO techniques, the spatial dimension of the MIMO channel is exploited through the use of multiple antennas at both the transmitter and receiver sides. This translates into an imp...
متن کامل