TCM for OFDM-IM

TY - JOUR

T1 - TCM for OFDM-IM

AU - Choi, Jinho

AU - Ko, Youngwook

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Orthogonal frequency division multiplexing (OFDM) with index modulation (IM) is a multicarrier transmission technique for frequency-selective fading channels. Although it is energy and spectral efficient, its performance may not be satisfactory as some active subcarriers can be suppressed by fading. In this letter, we consider trellis coded modulation (TCM) for OFDM-IM in order to improve the detection performance of active subcarriers by increasing the Hamming distance between index symbols. We devise mapping rules for TCM for two cases and it is shown that the diversity order can be improved, which results in a lower probability of index error.

AB - Orthogonal frequency division multiplexing (OFDM) with index modulation (IM) is a multicarrier transmission technique for frequency-selective fading channels. Although it is energy and spectral efficient, its performance may not be satisfactory as some active subcarriers can be suppressed by fading. In this letter, we consider trellis coded modulation (TCM) for OFDM-IM in order to improve the detection performance of active subcarriers by increasing the Hamming distance between index symbols. We devise mapping rules for TCM for two cases and it is shown that the diversity order can be improved, which results in a lower probability of index error.

KW - index modulation

KW - orthogonal frequency division multiplexing

KW - Trellis coded modulation

UR - http://www.scopus.com/inward/record.url?scp=85030325560&partnerID=8YFLogxK

U2 - 10.1109/LWC.2017.2752168

DO - 10.1109/LWC.2017.2752168

M3 - Article

AN - SCOPUS:85030325560

SN - 2162-2337

VL - 7

SP - 50

EP - 53

JO - IEEE wireless communications letters

JF - IEEE wireless communications letters

IS - 1

ER -