Early Access ArticlesEarly Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.
Polar codes have gained a great amount of attention in the past few years, since they can provably achieve the capacity of a symmetric channel with a low-complexity encoding and decoding algorithm. As a result, polar codes have been selected as a coding scheme in the 5th generation (5G) wireless communication standard. Among different decoding schemes, successive-cancellation (SC) and SC list (SCL... View full abstract»
The frozen set selection of polar codes, known as bit selection, determines the error-correcting performance of polar codes. The original bit selection was derived for successive cancellation decoding in a binary erasure channel. Density evolution has been used to evaluate the bit error probability in binary memoryless channel, but the computational complexity is still high and the simplified vers... View full abstract»
The wide-bandwidth signal transmission is one of the requirements in upcoming 5G communication systems in its quest for high data rates. In this paper, a wideband hybrid RF/Digital predistortion linearization technique is reported to compensate for the nonlinearity of ultra-wideband power amplifier (PA) for 5G systems driven by carrier aggregated and wideband modulated signals. The proposed method... View full abstract»
In this paper, a minimum mean square error (MMSE) joint feedback feed-forward equalizer (MJFFE) is proposed to deterministically suppress the inter-symbol interference (ISI) and inter-carrier interference (ICI) that arose from the filter bank multi-carrier (FBMC) in a long multipath channel of the 60 GHz indoor wireless transmission. The decision device is discarded in the decision feedback loop t... View full abstract»
Polar codes are a recently proposed class of block codes that provably achieve the capacity of various communication channels. They received a lot of attention as they can do so with low-complexity encoding and decoding algorithms, and they have an explicit construction. Their recent inclusion in a 5G communication standard will only spur more research. However, only a couple of ASICs featuring de... View full abstract»
A Monte Carlo Tree Search (MCTS) based largescale Multiple-Input, Multiple-Output (MIMO) detector is proposed. We describe how the MCTS algorithm, which has been successfully used in decision-making and game-playing problems, can be applied to MIMO detection. In particular, we discuss how the tree policy, default policy, simulation and backpropagation steps of MCTS can be adapted to MIMO detection... View full abstract»
The rapid emergence of 5G communications technology and standardization has seen an accelerated transfer of theoretical concepts to advanced development and implementation. Not only are 5G baseband signal processing algorithms becoming more important, but the co-design and implementation of corresponding circuits, architectures, and platforms are becoming necessary due to rapid standardization of ... View full abstract»
Decision feedback equalizer (DFE) is widely used to mitigate the inter-symbol interference (ISI). In gigabit applications, the complexity of time domain DFE grows exponentially with feedback filter (FBF) order. In this paper, we have derived low complexity, high throughput architectural designs for time domain DFEs, which meets the requirements of 5G communication systems. These designs are based ... View full abstract»
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