Full-Duplex Multi-Hop Wireless Networks Optimization with Successive Interference Cancellation

Shi, Lei; Li, Zhehao; Bi, Xiang; Liao, Lulu; Xu, Juan

doi:10.3390/s18124301

Cited by 13 publications

(5 citation statements)

References 30 publications

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“…Assuming successive interference cancellation receiver type at Bob [ 29 ], the covert message maximum rate is given by

if Bob cannot decode

, i.e.,

or, equivalently,

and, otherwise,

…”

Section: Covert Throughput At the Covert User Bobmentioning

confidence: 99%

Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver

Tan

Nguyen

Fiche

et al. 2022

Sensors

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This paper considers hiding messages in overt transmissions with a full-duplex receiver, which emits artificial noise to secure its transmission connection while a transmitter opportunistically sends a covert message to a covert user. The warden’s uncertainties in decoding the overt message and artificial-noise-received power are exploited to hide messages. Then, the covert throughput accompanied with the warden’s average detection error probability are determined. The results show that increasing the transmit power of artificial noise or improving secure connection at the overt user will improve the covert performance. The results also show that the covert performance is improved when the self-interference cancellation is improved at the full-duplex receiver or when the warden is located close to the full-duplex receiver, indicating the positive impact of the overt performance on the covert performance.

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“…Assuming successive interference cancellation receiver type at Bob [ 29 ], the covert message maximum rate is given by

if Bob cannot decode

, i.e.,

or, equivalently,

and, otherwise,

…”

Section: Covert Throughput At the Covert User Bobmentioning

confidence: 99%

Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver

Tan

Nguyen

Fiche

et al. 2022

Sensors

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show abstract

“…Cache hit probability is a commonly used performance metric in caching networks, which measures the probability that the users can successfully download their requested content from pre-cached BSs. In wireless works, the event of cache hit can be evaluated by the event that the received SINR from the cached SBS is larger than a decoding threshold [29]. Hence, the cache hit probability that the typical user in Slice-f achieves from SBSs can be formulated as…”

Section: Cache Hit Probability Achieved From Cached Sbssmentioning

confidence: 99%

“…In the high-SINR region, the performance gains of ζ b achieved by the proposed optimal caching PMF, i.e., Equation (29), is near 25% and 11% compared to the linear caching strategy and the strategy in [24], respectively. The gains of ζ v , achieved by Equation (32), is approximately equal to the medium SNR region.…”

mentioning

confidence: 94%

On the Performance of UAV-Aided Content Caching in Small-Cell Networks with Joint Transmission

2021

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Unmanned aerial vehicles (UAVs), featured by the high-mobility and high-quality propagation environment, have shown great potential in wireless communication applications. In this paper, a novel UAV-aided small-cell content caching network is proposed and analyzed, where joint transmission (JT) is considered in the dense small-cell networks and mobile UAVs are employed to shorten the serving distance. The system performance is evaluated in terms of the average cache hit probability and the ergodic transmission rate. From the analytical results, we find that (i) the proposed UAV-aided small-cell network shows superior caching performance and, even with a small density of UAVs the system’s cache hit probability, can be improved significantly; (ii) the content’s optimal caching probability to maximize the cache hit probability is proportional to the (K+1)-th root of its request probability, where K is the number of small-cell base stations that serve each user by JT; (iii) caching the most popular content in UAVs may lead to a low transmission rate due to the limited resource offered by the low-density UAVs. Simulation results are presented to validate the theoretical results and the performance gain achieved by the optimal caching strategy.

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“…NOMA, on the other hand, shares the spectrum by allocating an entire resource block to multiple users simultaneously [8]. It relies on successive interference cancellation (SIC) to decode signals from the overlapping transmissions [9]. By integrating the strengths of both OFDMA and NOMA, the stability and timeliness of information transmission in research can be significantly enhanced.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Timeliness of Hybrid OFDMA-NOMA Sensor Networks with Stability Constraints

Wang,

Dong,

Pan

2024

Electronics

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In this paper, we analyze the timeliness of a multi-user system in terms of the age of information (AoI) and the corresponding stability region in which the packet rates of users lead to finite queue lengths. Specifically, we consider a hybrid OFDMA-NOMA system where the users are partitioned into several groups. While users in each group share the same resource block using non-orthogonal multiple access (NOMA), different groups access the fading channel using orthogonal frequency division multiple access (OFDMA). For this system, we consider three decoding schemes at the service terminals: interfering decoding, which treats signals from other users as interference; serial interference cancellation, which removes signals from other users once they have been decoded; and the enhanced SIC strategy, where the receiver attempts to decode for another user if decoding for a previous user fails. We present the average AoI for each of the three decoding schemes in closed form. Under the constraint of the stable region, we find the minimum AoI of each decoding scheme efficiently. The numerical results show that by optionally choosing the decoding scheme and transmission rate, the hybrid OFDMA-NOMA outperforms conventional OFDMA in terms of both system timeliness and stability.

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Full-Duplex Multi-Hop Wireless Networks Optimization with Successive Interference Cancellation

Cited by 13 publications

References 30 publications

Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver

Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver

On the Performance of UAV-Aided Content Caching in Small-Cell Networks with Joint Transmission

Optimizing the Timeliness of Hybrid OFDMA-NOMA Sensor Networks with Stability Constraints

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