Hence , in the receiver 's perception , each MS - Aloha frame floats within the boundaries of the ideal time - slot .
PLCP is required to properly recover the start of each MS - Aloha frame .
Hence , in the receiver 's perception , each MS - Aloha frame floats within the boundaries of the ideal time - slot , and PLCP is required to properly recover the start of each MS - Aloha frame .