Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ameha T. Abebe"'
Publikováno v:
IEEE Transactions on Cognitive Communications and Networking. 8:1159-1173
A general form of codebook design for code-domain non-orthogonal multiple access (CD-NOMA) can be considered equivalent to an autoencoder (AE)-based constellation design for multi-user multidimensional modulation (MU-MDM). Due to a constrained design
Multi-Sequence Spreading Random Access (MSRA) for Compressive Sensing-Based Grant-Free Communication
Autor:
Chung G. Kang, Ameha T. Abebe
Publikováno v:
IEEE Transactions on Communications. 69:7531-7543
The performance of grant-free random access (GF-RA) is limited by the number of accessible random access resources (RRs) due to the absence of collision resolution. Compressive sensing (CS)-based RA schemes scale up the RRs at the expense of increase
Publikováno v:
2022 27th Asia Pacific Conference on Communications (APCC).
Autor:
Chung G. Kang, Ameha T. Abebe
Publikováno v:
IEEE Journal on Selected Areas in Communications. 39:773-787
Grant-free (GF) access has been one of the enablers for the various use cases in 5th generation (5G) mobile system, especially for time-critical massive machine-type communication (mMTC). However, these use cases have diverse quality of service (QoS)
Publikováno v:
2022 IEEE 19th Annual Consumer Communications & Networking Conference (CCNC).
Autor:
Ameha T. Abebe, Chung G. Kang
Publikováno v:
IEEE Wireless Communications Letters. 9:683-687
Observing that employing a single codebook (CB) per user transmission block in the conventional CB-based non-orthogonal multiple access (NOMA) schemes doesn’t exploit code and interference diversity and has limitations in some unfavorable channel c
Autor:
Chung G. Kang, Ameha T. Abebe
Publikováno v:
IEEE Communications Letters. 23:2229-2233
A scalable grant-free access, which simultaneously reduces access collision rate and signaling overhead, can be enabled by allowing contending users to randomly select a preamble from a very large set of non-orthogonal preamble sequences. By casting
Publikováno v:
ICAIIC
We present a cell-free massive MIMO-enabled mo-edge network with the aim of meeting the stringent rements of the newly introduced multimedia services. For considered framework, we propose a distributed deep-orcement learning (DRL)-based joint communi
Publikováno v:
ICC Workshops
Codebook design for code-domain non-orthogonal multiple access (CD-NOMA) can be considered as a multi-user multi-dimensional modulation (MU-MDM) design. However, the sheer complexity of assigning multiple bits from multiple users to signal points in
Autor:
Chung G. Kang, Ameha T. Abebe
Publikováno v:
ICTC
Grant-free random access is one of the key elements in the emerging mobile system in which a low-latency communication requirement must be met to support a massive number of machine-type communication (mMTC) devices. The random access success rate of