Optical CDMA systems have become an alternative multiple access for fiber optics and optical wireless systems [2 4].
Recently, several researchers have proposed to employ self-organized time division multiple access (STDMA) as an alternative Medium Access Control MACC) protocol of vehicular communications and have studied STDMA to verify its feasibility to vehicular safety applications.
The alternative, called "time-division multiple access" (TDMA), would squeeze more users on to each frequency by having their handsets take turns to transmit and receive a principle known as "time-slicing".
These errors have a limited impact at sufficiently large block sizes, which makes FDE an interesting alternative for code-division multiple access receivers [3, 4].
Orthogonal wavelet division multiple access (OWDMA) has been proposed as a viable alternative to OFDMA in communication systems.
As an alternative solution, TDMA (time-division multiple access), which achieves the deterministic and predictable transmission, is accepted as the main scheduling mechanism by WirelessHART, ISA100.11a, and WIA-PA.
All in all, we conclude that FBMC can perform sufficiently well to offer an alternative to OFDM as modulation and multiple access technique, offering several advantages especially as a cognitive radio physical layer.
Batch mode multicast MAC (BMMM) [9], broadcast support multiple access [10] and broadcast medium window (BMW) [11] protocols represent an alternative approach, according to which all recipients are requested to send ACKs.
We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced filterbank-based multicarrier system (OFDM/OQAM).
CDMA -- Code division multiple access.
