Errata

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Submit your own errata for this product.


The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page 42
1C

However, there is a longer congestion window when transmissions...
should be:
However, there is a longer contention window when transmissions...

 Anonymous 
Printed Page 44-45
Bottom of p.44 to p.45

Several sentences are repeated:
"Wireless LAN stations...effective throughput."

 Anonymous 
Printed Page 76
Figure 4-11, "Type=data" field in bottom row

"1 0"
should be:
"0 1"

 Anonymous 
Printed Page 78
Figure 4-14

Duration in RTS: 3xSIFS + ACK + frame time
should be:
Duration in RTS: 3xSIFS + CTS + ACK + frame time

 Anonymous 
Printed Page 150
"Per-frame keying" subsection, last sentence

"The process by which a unique key is derived for each key is called key mixing."
should be:
"The process by which a unique key is derived for each frame is called key mixing."

 Anonymous 
Printed Page 154
2nd and 3rd sentences

"The 16 low-order bytes are used to generate a WEP IV. The middle byte of the
WEP IV is constructed so that it avoids generating weak RC4 keys."

should be:

"The 16 low-order bits are used to generate the low and high bytes of a WEP IV.
The middle byte of the WEP IV is a dummy byte of fixed value, chosen to avoid
generating weak RC4 keys."

 Anonymous 
Printed Page 254
3rd paragraph toward the bottom

Typo:

Original:
"Every chunk of 11 chips is the compared to an identical ship stream."

Corrected:
"Every chunk of 11 chips is then compared to an identical ship stream."

 Anonymous 
Printed Page 260
1st paragraph under 'Differential Phase Shift Keying (DPSK)'

Typo:

Original:
"Figure 12-8 shows two identical sine waves shifted by a small amount along the time axis."

Corrected:
"Figure 12-9 shows two identical sine waves shifted by a small amount along the time axis."

 Anonymous 
Printed Page 272
Bullet #1 in the 'Transmission at 5.5Mbps with CCK' section

Typo:

Original:
"The MAC frame embedded in the PCLP frame is divided into a string of 4-bit blocks."

Corrected:
"The MAC frame embedded in the PLCP frame is divided into a string of 4-bit blocks."

 Anonymous 
Printed Page 276
Last sentence

Typo:

Original:
"...and how the PCLP wraps up frames for transmission."

Corrected:
"...and how the PLCP wraps up frames for transmission."

 Anonymous 
Printed Page 310
Bullet #2 under the 'Reception Procedure' section

Typo:

Original:
...and find the end of the preamble to see the PCLP SIGNAL and SERVICE fields."

Corrected:
...and find the end of the preamble to see the PLCP SIGNAL and SERVICE fields."

 Anonymous 
Printed Page 335
first line

"It is unlikely that most client devices will be unable to send beamformed transmissions."
this sentence should read:
"It is unlikely that most client devices will be able to send beamformed transmissions."

 Anonymous 
Printed Page 337
Next to the last paragraph toward the bottom

Typo:

Original:
"Q-BPSK uses two data points in its constellation, but they are present on the in the quadrature component."

Corrected:
"Q-BPSK uses two data points in its constellation, but they are present in the quadrature component."

 Anonymous 
Printed Page 347
Intel indent, in the last line

"the the Centrino 80211g interface"
should be:
"the Centrino 80211g interface"

 Anonymous 
Printed Page 348
3rd line from the bottom

"wireles" instead of "wireless"

 Anonymous 
Printed Page 428
Bottom of box

Change two URLs from www.live.com to www.live555.com

 Anonymous 
Printed Page 540
5th paragraph, 3rd sentence

"Gaining access...often requires...a liability waver."
should be:
"Gaining access...often requires...a liability waiver."

 Anonymous