TY - GEN
T1 - A new approach to cooperative NOMA using distributed space time block coding
AU - Jamal, Muhammad Nasar
AU - Hassan, Syed Ali
AU - Jayakody, Dushantha Nalin K.
PY - 2018/2/14
Y1 - 2018/2/14
N2 - This paper presents a novel approach to cooperative non orthogonal multiple access (NOMA) using distributed space time block coding (STBC) known as STBC-NOMA. In conventional NOMA, the strong users detect the messages of weak users through successive interference cancellation (SIC). In cooperative NOMA, these copies are then forwarded by strong users to weak users at the expense of extra time slots. However, the proposed scheme exploits this feature of cooperation using STBCs to enable cooperation among the users. The STBC-NOMA renders less complexity as lesser number of SICs are performed at each user. To this end, we derive the outage probability of the STBC-NOMA scheme which involves finding the distribution of signal-to-interference ratio at the receiving terminals. The numerical results show that STBC-NOMA outperforms conventional NOMA and conventional cooperative NOMA in terms of outage probability and average sum rate.
AB - This paper presents a novel approach to cooperative non orthogonal multiple access (NOMA) using distributed space time block coding (STBC) known as STBC-NOMA. In conventional NOMA, the strong users detect the messages of weak users through successive interference cancellation (SIC). In cooperative NOMA, these copies are then forwarded by strong users to weak users at the expense of extra time slots. However, the proposed scheme exploits this feature of cooperation using STBCs to enable cooperation among the users. The STBC-NOMA renders less complexity as lesser number of SICs are performed at each user. To this end, we derive the outage probability of the STBC-NOMA scheme which involves finding the distribution of signal-to-interference ratio at the receiving terminals. The numerical results show that STBC-NOMA outperforms conventional NOMA and conventional cooperative NOMA in terms of outage probability and average sum rate.
KW - 5G networks
KW - Non orthogonal multiple access (NOMA)
KW - Space time block coding (STBC)
UR - http://www.scopus.com/inward/record.url?scp=85045282397&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045282397&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2017.8292344
DO - 10.1109/PIMRC.2017.8292344
M3 - Conference contribution
AN - SCOPUS:85045282397
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1
EP - 5
BT - 2017 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017
Y2 - 8 October 2017 through 13 October 2017
ER -