A method for allocating orthogonal frequency division multiplexing, OFDM, tones for an 802.11ac preamble on a communication device, comprising: determining whether a bandwidth for signal transmission is 20 MHz, 40 MHz, or 80 MHz; allocating 12 tones for non-high throughput short training field, L-STF, 52 tones for non-high throughput long training field, L-LTF, 48 data tones and 4 pilot tones for non-high throughput signal field, L-SIG, 52 tones for a very high throughput signal field A1, VHT-SIG-A1, 52 tones for a very high throughput signal field A2, VHT-SIG-A2, 12 tones for a very high throughput short training field, VHT-STF, 56 tones for one or more very high throughput long training fields, VHT-LTFs, 56 tones for a very high throughput signal field B, VHT-SIG-B, and 56 tones for a data field, DATA, if the bandwidth is 20 MHz; allocating 24 tones for the L-STF, 104 tones for the L-LTF, 96 data tones and 8 pilot tones for the L-SIG, comprising two redundant copies of 48 data tones, 104 tones for the VHT-SIG-Ai, 104 tones for the VHT-SIG-A2, 24 tones for the VHT-STF, 114 tones for the one or more VHT-LTFs, 114 tones for the VHT-SIG-B, and 114 tones for the DATA if the bandwidth is 40 MHz; allocating 48 tones for the L-STF, 208 tones for the L-LTF, 192 data tones and 16 pilot tones for the L-SIG, comprising four redundant copies of 48 data tones, 208 tones for the VHT-SIG-A1, 208 tones for the VHT-SIG-A2, 48 tones for the VHT-STF, 242 tones for the one or more VHT-LTFs, 242 tones for the VHT-SIG-B, and 242 tones for the DATA if the bandwidth is 80 MHz; and transmitting a signal using the allocated tones, wherein the tones for L-STF, L-LTF, L-SIG, VHT-SIG-A1, VHT-SIG-A2 are transmitted omnidirectional. determining whether a bandwidth for signal transmission is 20 MHz, 40 MHz, or 80 MHz; allocating 12 tones for non-high throughput short training field, L-STF, 52 tones for non-high throughput long training field, L-LTF, 48 data tones and 4 pilot tones for non-high throughput signal field, L-SIG, 52 tones for a very high throughput signal field A1, VHT-SIG-A1, 52 tones for a very high throughput signal field A2, VHT-SIG-A2, 12 tones for a very high throughput short training field, VHT-STF, 56 tones for one or more very high throughput long training fields, VHT-LTFs, 56 tones for a very high throughput signal field B, VHT-SIG-B, and 56 tones for a data field, DATA, if the bandwidth is 20 MHz; 12 tones for non-high throughput short training field, L-STF, 52 tones for non-high throughput long training field, L-LTF, 48 data tones and 4 pilot tones for non-high throughput signal field, L-SIG, 52 tones for a very high throughput signal field A1, VHT-SIG-A1, 52 tones for a very high throughput signal field A2, VHT-SIG-A2, 12 tones for a very high throughput short training field, VHT-STF, 56 tones for one or more very high throughput long training fields, VHT-LTFs, 56 tones for a very high throughput signal field B, VHT-SIG-B, and 56 tones for a data field, DATA, if the bandwidth is 20 MHz; allocating 24 tones for the L-STF, 104 tones for the L-LTF, 96 data tones and 8 pilot tones for the L-SIG, comprising two redundant copies of 48 data tones, 104 tones for the VHT-SIG-Ai, 104 tones for the VHT-SIG-A2, 24 tones for the VHT-STF, 114 tones for the one or more VHT-LTFs, 114 tones for the VHT-SIG-B, and 114 tones for the DATA if the bandwidth is 40 MHz; 24 tones for the L-STF, 104 tones for the L-LTF, 96 data tones and 8 pilot tones for the L-SIG, comprising two redundant copies of 48 data tones, 104 tones for the VHT-SIG-Ai, 104 tones for the VHT-SIG-A2, 24 tones for the VHT-STF, 114 tones for the one or more VHT-LTFs, 114 tones for the VHT-SIG-B, and 114 tones for the DATA if the bandwidth is 40 MHz; allocating 48 tones for the L-STF, 208 tones for the L-LTF, 192 data tones and 16 pilot tones for the L-SIG, comprising four redundant copies of 48 data tones, 208 tones for the VHT-SIG-A1, 208 tones for the VHT-SIG-A2, 48 tones for the VHT-STF, 242 tones for the one or more VHT-LTFs, 242 tones for the VHT-SIG-B, and 242 tones for the DATA if the bandwidth is 80 MHz; and 48 tones for the L-STF, 208 tones for the L-LTF, 192 data tones and 16 pilot tones for the L-SIG, comprising four redundant copies of 48 data tones, 208 tones for the VHT-SIG-A1, 208 tones for the VHT-SIG-A2, 48 tones for the VHT-STF, 242 tones for the one or more VHT-LTFs, 242 tones for the VHT-SIG-B, and 242 tones for the DATA if the bandwidth is 80 MHz; transmitting a signal using the allocated tones, wherein the tones for L-STF, L-LTF, L-SIG, VHT-SIG-A1, VHT-SIG-A2 are transmitted omnidirectional.