Thereafter, if one bit is lost, the
check bit can be used with the three remaining bits to recover the missing bit.
Recall that each node has a
check bit [b.sub.ind] and the reply is made only if every
check bit of the decrypted nodes has the proper value.
This RAID level utilizes a parity
check bit to analyze whether data has been lost or altered.
25 mins LESSON 1 central processor, cores, bits, bytes, storing data,
check bit, parity, words, addresses, flow charts, program area, data area, op codes, op code chart, three address system, machine coding.
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Check bit (one block memory) to determine is the user's vehicle already is in the parking lot or not.
This data is: UID--Unique Identification--encode check, validity period--locked data for date, time, and year, so that the tag can be used only in defined period (after locking this data no one can unlock these blocks for reuse),
check bit (one block memory) to determine is the user's vehicle already is in the parking lot or not.
Table I: BCH and RS Parameters PARAMETERS BOSE-CHAUDHRI-HOCQUENGHEM REED SOLOMON BLOCK LENGTHS n = 2 [conjunction] v-1 N=2 [conjunction] v-1 NO OF
CHECK BITS N -k<= vt n-k= v(2t) MINDISTANCE Dmin>=2t+1 Dmin=2t+1 Table 2: Comparison of coding WITHOUT ENCODING 1 BCH CODING Eb/N0 BER 6 0.0039703 0.0023754 7 0.007551170 0.0015202 8 0.0003050412 0.0001450225 9 0.0000500068 0.0000250039 10 0.0000150020 0.00000500089 Table 2: BER System performance in AWGN channel SNR BER 1 0.068 6 0.088 10 0.101 15 0.08075 20 0.087
B and C then announce the result of the XOR of their
check bits to A.
Their study revealed that a successful design should employ the most effective extra
check bits to make full use of information in relayed bits to help decode the message from two users.