While on this
topic, we present the Digital Video Broadcasting for handhelds (DVB-H) system that will be supplying
Mobile TV to the end user, among other packet data services.
Since the Internet Protocol (IP) is increasingly becoming a mainstream interface to delivery platforms,
we will present how 3G digital cellular systems address this increasing packet access need.
The high-speed packet access (HSPA) evolution will be discussed as a means to achieving the aforementioned
voice and data IP services. The evolution will consist of advanced receivers, higher-order
modulation, broadcast and multicast services, packet connectivity, as well as other items. Lastly, we
will briefly show the benefits of using multiple-input-multiple-output (MIMO) antenna systems to
increase the system throughput and capacity of a wireless system. We hope to provide some insight
into how the channel conditions affect the MIMO system capacity benefits.
9.1 INTRODUCTION
In recent years a variety of wireless systems have used OFDM to provide reliable communications.
These systems range from satellite to terrestrial environments encompassing broadcasting such as
Digital Audio Broadcasting (DAB) [1] and Digital Video Broadcasting (DVB) [2] as well as wireless
LAN (IEEE802.
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