Pre-coding Design with Constellation Structures

  • Jianhua Lu
  • Xiaoming Tao
  • Ning Ge
Chapter
First Online:
Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC)

Abstract

As stated in Chap. 2, a typical transmission process in wireless communications may be described by mappings from information space to coding space, and finally to signal space. This signal space mapping process may be described in two aspects, namely, resource allocation and signal constellation design. In resource allocation, inappropriate usage of resource will introduce fading and interference, introducing structure errors (e.g., synchronization error, packet delineation loss) that lead to a severe degradation of the transmission signal. In order to avoid these errors, resource allocation needs to take advantage of multi-domain coordination (e.g., time, frequency and space) for optimization. In signal constellation design, optimized matching between the constellation and the characteristics of the channel is desired in order to approach the performance limit. In this chapter, we discuss this issue under the well-known multiple-input and multiple-output (MIMO) transmission framework. To be specific, the pre-coding design algorithm with constellation structures (quadrature phase-shift keying (QPSK), quadrature amplitude modulation (QAM), etc.) in MIMO systems is presented.

Keywords

MIMO Constellation Structured pre-coding design 
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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Jianhua Lu
    • 1
  • Xiaoming Tao
    • 1
  • Ning Ge
    • 1
  1. 1.Department of Electronic EngineeringTsinghua UniversityBeijingChina

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