Search results for: Yujie Pei

Items from 1 to 7 out of 7 results

chapter

An LDPC-Based Physical Layer Solution in Satellite Interactive System

Yujie Pei, Chunjiang Liu, Hailiang Feng, Yuhai Shi

Communications in Computer and Information Science > High Performance Networking, Computing, and Communication Systems > 425-430

This paper presents a physical layer transmission solution of satellite interactive communication system, which takes LDPC code as part of FEC scheme and handles control data and payload in the same way. With this method, hardware design is simplified and error floor is decreased.

chapter

Fairness-Aware Resource Allocation in Relay-Enhanced TD-LTE-A Systems

Xuanli Wu, Yujie Pei, Fabrice Labeau, Wanjun Zhao

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) > 1 - 5

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)

Relay technique is introduced in the Long Term Evolution Advanced (LTE-Advanced) system to extend the network coverage, improve the performance of cell-edge user equipments (UEs) and increase the fairness among different UEs. The combination of multiple-input-multiple-output (MIMO) and relay can further increase frequency efficiency and improve system performance. In this paper, based on the architecture...

chapter

Research on Automatic Recommender System Based on Data Mining

Qingzhang Chen, Qiaoyan Chen, Kai Wang, Zhongzhe Tang, more

Communications in Computer and Information Science > Emerging Research in Web Information Systems and Mining > Applications of Web Information Systems > 28-35

By using ART neural network and data mining technology, this study builds a typical online recommendation system. It can automatically cluster population characteristics and dig out the associated characteristics. Aiming at the characteristics of recommendation system and users’ attribute weights, this paper propose a modified ART algorithm for clustering MART algorithm. It makes recommendation system...

chapter

Construction Method of LDPC Codes Used for Satellite Interactive System

Chunjiang Liu, Yuhai Shi, Lifu Wu, Yujie Pei

2011 7th International Conference on Wireless Communications, Networking and Mobile Computing > 1 - 3

2011 7th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM)

This paper firstly points out the disadvantage and advantage of Turbo Codes and LDPC codes which are used in satellite interactive communication system, then it introduces the common construction method. Subsequently, this paper putts forward a new construction method of a type of LDPC codes which is fit for satellite interactive communication system. Finally, error correction performance of LDPC...

chapter

A passive method to estimate TCP round trip time from nonsender-side

Yujie Pei, Hongbo Wang, Shiduan Cheng

2009 2nd IEEE International Conference on Computer Science and Information Technology > 43 - 47

2009 2nd IEEE International Conference on Computer Science and Information Technology (ICCSIT 2009)

TCP round trip time is an important subject of network measurement research. And it is widely utilized in congestion control and network tomography. Compared with active methods to measure round trip time, passive ones are superior for low cost and not injecting traffic into networks. However, all present passive measurement methods have deficiencies. Some of them are not accurate enough, some others...

article

A self-adaptive key flow routing adjustment algorithm

Yujie Pei, Hongbo Wang, Shiduan Cheng

Frontiers of Electrical and Electronic Engineering > 2009 > 4 > 3 > 287-294

Congestion may decrease throughput and transfer efficiency of network, and lead to serious degradation of quality of service (QoS) acquired by end users. Present routing adjustment methods against congestion mostly consider single-point congestion. They cannot deal with multi-point congestion. This paper presents a probability-based routing adjustment algorithm, which solves the interference problem...

chapter

Finding the Most Balanced Delay Constrained Path

Yujie Pei, Hongbo Wang, B. Adamou, Shiduan Cheng

2009 WRI International Conference on Communications and Mobile Computing > 3 > 201 - 205

2009 WRI International Conference on Communications and Mobile Computing. CMC 2009

Sometimes the backbone network of Internet experiences congestion because traffic is not distributed rationally. This fact may lead network resources utilized inefficiently. The main idea for load balancing is to alter the route for some traffic. But current approaches with this idea often get such a long route that decrease the quality of service. This paper presents a new flow routing adjustment...

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Search results for: Yujie Pei

An LDPC-Based Physical Layer Solution in Satellite Interactive System

Fairness-Aware Resource Allocation in Relay-Enhanced TD-LTE-A Systems

Research on Automatic Recommender System Based on Data Mining

Construction Method of LDPC Codes Used for Satellite Interactive System

A passive method to estimate TCP round trip time from nonsender-side

A self-adaptive key flow routing adjustment algorithm

Finding the Most Balanced Delay Constrained Path

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