Details

Autor(en) / Beteiligte

• Lee, Man Hee
• Lee, Hye Yeong
• Shin, Soo Young

Titel

Divergence intensity and mode combinations for multiple orbital angular momentum transmission

Ist Teil von

• ICT Express , 2023, 9(6), , pp.1053-1058

Ort / Verlag

Elsevier

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this paper, we propose divergence intensity (DI) and mode combinations for multiple orbital angular momentum (OAM) users to enhance the sum capacity. Generally, OAM multiplexing has beam divergence (BD) limiting the achievable link distance and degrading performance. The effective OAM channel model implies DI which is considered as intensity of OAM mode. In addition, the near–far mode combination is recommended to be sub-optimal compared with different mode combinations which types are sequential and uniform. The sub-optimal mode combination outperforms the other two mode combinations because channel gain shares the DI effect. The performance of the proposed scheme is derived and simulated in terms of normalized DI, capacity per user, and sum capacity.