07-05-2012, 12:40 PM
High Level Model of IEEE 802.15.3c Standard and Implementation of a Suitable FFT on ASIC
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Introduction
The advancement of the applications in communication systems as well as the
data rate of the applications are racing with time. Different task groups developed
different standards and some of them are adopted by the IEEE. IEEE 802.15.3c
is one of them. Some other applications of IEEE 802.15 standard are Bluetooth
and Zigbee. These standards can support a data rate up to 100 Mb/s for short
range (1 m - 10 m) communication. However, those atandards are not suitable for
applications such as Live HD video streaming with a bit rate 3 Gbps, to replace
the HDMI (2.2 Gbps) connection with wireless connectivity and large file transfer
at very high speed.
Standard review of mm-Wave
This chapter focuses on the standard review of the IEEE 802.15.3c. This standard
is mostly used for high data rate transmission at GBPS rates such as video on
demand, HDTV and home theater and data transmission at Gbps data rate. This
standard use 60GHz as a carrier frequency [1]. This band a high attenuation in
free space. Research shows that the 60 GHz band has attenuation of 15 dB per
kilometer. So, this band is a promising candidate for indoor applications rather
than outdoor.
It is noted in [1] that the standard can operate in three different mode.
• Single Carrier mode in mmWave PHY (SCPHY)
• High Speed Interface mode in mmWave PHY (HSIPHY)
• Audio/Visual mode in mmWave PHY (AVPHY)
Single carrier mode in mm wave PHY (SCPHY)
This mode provides three different classes of modulation and coding scheme targeting
different wireless connectivity applications. Class 1 has been specified for
low rate and low cost mobile operation while this mode can support a data rate
Gb/s. Class 2 has been specified to achieve a data rate up to 3 Gb/s and class
3 has been specified for the high speed and high performance applications with a
data rate over 5 Gb/s [1].
Bandwidth and carrier frequency
This mode operates in four different carrier frequency that ranges between 57.24
GHz to 65.88 GHz [1]. However the bandwidth remains equal for all four cases.
These channels are defined in Table 2.1.