Long Range Wireless Technology

It supports adaptive modulation and coding, so that in conditions of good signal, highly efficient QAM coding scheme is used, whereas where the signal is poorer, more robust BPSK coding mechanism is used. 802. 16e uses Scalable OFDMA to carry data, supporting channel bandwidths of between MHz and MHz, with up to subcarriers. Other PHY features include support for Multiplein Multipleout MIMO antennas in order to provide good NLOS Nonlineofsight characteristics or higher bandwidth and Hybrid automatic repeat request HARQ for good error correction performance..

It supports adaptive modulation and coding, so that in conditions of good signal, highly efficient QAM coding scheme is used, whereas where the signal is poorer, more robust BPSK coding mechanism is used. Other PHY features include support for Multiplein Multipleout MIMO antennas in order to provide good NLOS Nonlineofsight characteristics or higher bandwidth and Hybrid automatic repeat request HARQ for good error correction performance.. In intermediate conditions, QAM and QPSK can also be employed. 802.