home 
wiki
wiki
Spelling: PBCC
I'll try not to get too technical..
PBCC [1] stands for Packet Binary Convolutional Code, and is the base
technology behind 802.11b+ [2]. PBCC [3] offers many advantages over
CCK [4] (which is what 802.11b [5] uses), while offering the ability
for 802.11b+ [6] devices to remain compatible with 802.11b [7]
devices.
CCK [8] has a short block-length for its eight-Quadrature Phase Shift
Keying (QPSK [9]) data symbols. PBCC [10], on the other hand, uses 64
state symbols. This means that PBCC [11] can carry more data.
PBCC [12]'s "Convolutional Coding" is a method of Forward Error
Correction (FEC [13]) which lowers the error rate without any need to
increase transmission power. In theory, this means using PBCC, you
should be able to increase your data rate while extending the distance
your signal can travel without harmful degradation.
PBCC [14] has the potential to deliver up to 33Mbps in the 2.4GHz ISM
[15] band, but its implementation in 802.11b+ [16] only includes
22Mbps, 11Mbps and 5.5Mbps usage.
Texas Instruments currently makes all the PBCC [17]/802.11b+ [18]
chipsets. More information can be found on the TI website [19].
Links:
------
[1] http://melbournewireless.org.au/?PBCC
[2] http://melbournewireless.org.au/?802.11b-plus
[3] http://melbournewireless.org.au/?PBCC
[4] http://melbournewireless.org.au/?CCK
[5] http://melbournewireless.org.au/?802.11b
[6] http://melbournewireless.org.au/?802.11b-plus
[7] http://melbournewireless.org.au/?802.11b
[8] http://melbournewireless.org.au/?CCK
[9] http://melbournewireless.org.au/?QPSK
[10] http://melbournewireless.org.au/?PBCC
[11] http://melbournewireless.org.au/?PBCC
[12] http://melbournewireless.org.au/?PBCC
[13] http://melbournewireless.org.au/?FEC
[14] http://melbournewireless.org.au/?PBCC
[15] http://melbournewireless.org.au/?ISM
[16] http://melbournewireless.org.au/?802.11b-plus
[17] http://melbournewireless.org.au/?PBCC
[18] http://melbournewireless.org.au/?802.11b-plus
[19] http://www.ti.com/sc/wirelessethernet
[EditText] [Spelling] [Current] [Raw] [Code] [Diff] [Subscribe] [VersionHistory] [Revert] [Delete] [RecentChanges]