MIMO

Chapter 8

WiMAX Implementation

Serdar Sezginer, Guillaume Vivier, Bertrand Muquet, Ambroise Popper and Amélie Duchesne

8.1 Introduction¹

Multiple Input Multiple Output MIMO techniques have been incorporated in all of the recently developed wireless communications standards including IEEE 802.11n, IEEE 802.16e, and Long-Term Evolution (LTE). In this chapter, we focus on the schemes from current and future IEEE 802.16 specifications. First, we describe the schemes existing in current IEEE 802.16e specifications and, then, we discuss briefly the solutions proposed for IEEE 802.16m. Last, we provide the benefits of UL-MIMO together with a new method, namely, tile-switched diversity (TSD), which benefits from transmit diversity without any channel knowledge ...