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For uplink time synchronization and power adjustment, ranging process has been suggested for OFDMA (orthogonal frequency division multiple access) based BWA (broadband wireless access) networks like IEEE 802.16. The CDMA (code division multiple access) type code transmission in contention based ranging channel has been provisioned to send the ranging request by an SS (subscriber station) to BS (base...
MPEG coded video consists three types of periodically arranged inter-frame dependent frames: I, P, and B with different level of information and importance. When such encoded frames are transported in any wireless network, all frames are equally prone to loss. However, the effect of loss of frames is not uniform for all frame types. The effect of loss on visual quality depends on the type of the frame...
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